Top 7 Programming Languages That Are Dying

 

World is moving towards advanced technologies and this is because of programming languages. Programming languages are a medium to connect humans to machines. Every year new programming languages enter the technology world. Some of them perform best to deliver the desired output to the programmers, whereas others fail to do so. Sometimes, a programming language that performs best today may face strong competition due to the new programming languages. Here we’ll list down top 7 programming languages that will die in a few years.

Top 7 Programming Languages That Are Dying-

1. Haskell-

It is a general-purpose, statically typed programming language that has released its latest stable release 9 years ago. As per the March 2020 report of Tiobe programming language Index, Haskell has scored 39th position out of 50 programming languages. It provides some attractive features such as higher reliability, shorter lead time, and shorter and maintainable code. Also, it is difficult language and consumes more time to learn. With the ever-changing technology, there are some new languages like Python, Go that are gaining more popularity than Haskell.

2. Objective-C-

It is a general purpose object oriented language that follows the Smalltalk-derived syntax and and is mainly used to develop apps for Apple platforms such as macOS, iOS etc. According to the reports, Objective C has dropped by 10-12 positions from the list of top programming languages within last few years and Swift climb the ranking list with rewarding points during the same period. Swift is comparatively more preferred than Objective C by the developers because of various remarkable features such as robustness, better memory management and so on. If you are looking forward to start your journey with macOS or iOS domain, it will be better to go with Swift rather than Objective C.

3. Perl-

It is a general purpose programming language introduced in 1987 and its latest version is Perl 6. This language is used for a wide range of tasks like text manipulation, GUI development, web development, network programming and so on. It has gained a lot of popularity in the tech world around 2004 but after the advent of several prominent programming languages such as Python, its latest version is facing difficulties to make a strong command over the market. As per the TIOBE Index 2019 report, Perl language ranked in 19th position which was low for the language. It is recommended to diversify your programming language selection considering the average download trend of Perl in the last few years.

4. Lisp-

It is one of the oldest languages and has lost its fame. These days, developers rarely use this language. Lisp is fully parenthesised prefix notation and is a second oldest high level programming language developed in 1960. These days, developers don’t use LISP directly, but they use general-purpose Lisp standalone implementations like Scheme, Clojure and Common Lisp. 

5. Erlang-

It is a general-purpose, functional programming language that is mainly known for its support to concurrency, distribution and fault tolerance. Erlang was initially used for huge telecommunication systems but later on it expanded its implementation into various domains like e-commerce, banking and so on. However the language is still in use by some established organizations yet because of a few factors, for example, steep  learning curve, availability of better choices like Elixir, Elm, etc. it isn’t being much preferred by the new developers and companies. According to the reports, Erlang is experiencing a consistent decline in its popularity in the last some years. 

6. R-

R is a well known programming language for statistical computing. It provides wide variety of statistical like linear and nonlinear modelling, classical statistical tests, time-series analysis, classification, clustering and graphical techniques and is also highly extensible. Nonetheless, most of the time, R has been compared with Python, and some developers even think that this language will soon be doomed because of the popularity of Python. You must understand that Python is a general-purpose scripting language, while R has the strength of statistics packages. Python is best for data manipulation, munging and repetitive tasks, whereas R suits for exploring datasets and analysis. As per the TIOBE index report R has secured 14th position.

7. VB.NET-

It is an object oriented language developed by Microsoft and implemented it on .NET framework.  VB.NET is a successor of its initial visual basic language. Obviously VB.NET was the favorite for a longer time period but it gets on the weaker side against competitor language C# that was primarily built on .NET framework. According to the TIOBE Index reports, C# has taken over the VB.NET in terms of demand and popularity and VB.NET is loosing its popularity according to the Google trends result too. 

Meanwhile, because of its strong command over the programming world before, VB.NET still has some adequate occupancy in the market but if you’re at a beginner stage, you’re recommended to prefer different choices.

Wrap Up-

There is always a debate about using programming languages among the programmers who uses these languages and those who don’t. Many languages evolve according to the need. If you are confused to choose the best programming language for your project, consult with Solace experts. We are here to help you through consultation and development. Solace developers are well proficient to use latest programming languages for your project. You can hire developers of Solace team for an effective software development. Connect with Solace and get a free quote for software development. We will be happy to help you.

How To Improve Code Quality of Software?

 

Code quality is an important and popular term among software developers. Mostly software quality is attributed to an intuitive user interface, detailed testing and security. But the main aspect is code quality which is mostly neglected. This raises a question that- what is code quality, how to measure it and how to maintain throughout the software? 

So, here we’ll discuss answers to all these, but before that, you must know that bad code quality can create issues in software that may restrict you to do some improvements that clients would like to see. For instance, your current application is working well but you want to add more features. When developers observed the app code, they reported that the code can’t be refactored. If a developer still goes ahead with adding features in the same code, it will create issues in your existing software application. Then, you have to make changes in the plan of feature improvement or start the development from scratch. If you want avoid all this, improve the code quality and maintain it throughout the software development. Let’s have a look at what is code quality and how to improve it?

What Is Code Quality?

Code Quality

Code quality refers to the usefulness and maintainability of code in the long term. It covers both great and bad quality code. Basically, it provides insights to the project managers about the coding practices and style followed by developers. Different teams might use different definitions according the context. 

Importance Of Code Quality- 

1. Increases Readability And Ease Of Editing-

Good quality code ensures that the codes are written in a way that makes them highly readable. Some of the factors are using proper comments, indentation, clear notations and simplicity. Code editing is more comfortable with high-quality code because they are easy to read and implement changes. 

2. Making Program Sustainable-

Software is supposed to be sustainable when it can survive over the long run with insignificant changes. Average software life is accounted to be around six years, but poor software quality doesn’t last even half of this time duration. This is because, with the consistent development of operating programs and hardware, change in software raises. It is challenging and sometimes impossible to perform transformations on the poor code quality. 

3. Promotes Easy Transferability-

A high quality code is easy to edit and has high readability. Another importance is that the code quality practices make the straight software translation across platforms easier. With lots of available platforms, it is necessary to have direct transferability with minimal changes required. 

How To Measure Code Quality?

There’s no single way to measure the code quality. What you measure may be different from what other development team measures. Here are some of the code quality aspects to measure-

1. Reliability-

It measures the probability that a system will run without failure over a particular period of operation. This relates to the number of defects and availability of software. Numerous fo defects can be measured by running a static analysis tool. You can measure software availability using mean time between failures (MTBF). Low defect counts are important to develop a reliable codebase.

2. Maintainability-

It is a measure of how easily software can be maintained. It relates to the size, structure, consistency and complexity of the codebase. Ensuring maintainable source code depends on various factors like testability and understandability. You can’t use a single metric to ensure maintainability. Number of stylistic warnings and halstead complexity measures are Some metrics you may consider to improve maintainability. Both automation and human reviewers are important to develop maintainable codebases.

3. Reusability-

It measures whether existing assets like code can be used again. If assets have characteristics like modularity or loose coupling, it can be easily reused. Reusability can be measured by lots of interdependencies. Running a static analyzer can help developer to identify these interdependencies.  

4. Testability-

It estimates how well the software supports testing efforts. It depends on how effectively you can control, observe and automate testing. One can measure testability based on how many test cases you need to find potential faults in the system. Complexity and size of software can impact testability. Hence, applying methods at the code level- like cyclomatic complexity- can help to improve the testability of component.

Best Practices To Improve Code Quality-

1. Architecture Is Priority-

Most of the people say that they do things very rapidly as they don’t have time to think about architecture. But due to this, 99% of them face a big issue. Writing code withing keeping architecture in mind is a vain. So before you start, you should have complete understanding of what your code will be doing, its uses, how modules and services work with each other, what structure will it have, how will it be tested and debugged, how will it be updated and so on.

2. Use A Coding Standard-

Use of a coding standard is one of the best way to ensure high quality code. It ensures that everyone is using the right style or not. This improves readability and consistency of the codebase. It is a key for lower complexity and higher quality.

How to Do It-

• Train your developers
• Help them to comply with it

Using a static code analyzer, you can do this.

3. Analyze Code-

Quality must be a priority from the beginning of development. You must analyze the code before code reviews begin. It is better to analyze code as soon as it’s written.

In case of DevOps, code analysis takes place during the development phase. Static analyzers can be run over code as soon as it’s written. This creates an automated feedback loop, hence developers can improve code before it enters the code review phase. All things considered, if you find errors very early, you can solve them rapidly and in an easier way.

One of the best way to improve quality is by analyzing code automatically. By running a static analyzer over code in early stage, you’ll ensure the code that gets to the code review phase is the highest quality possible. Also you can use static analyzers like Helix QAC and Klocwork to monitor key quality metrics.

4. Code Review-

Code review  is vital for maintaining code quality and growth of the team. The code of software must be reviewed early and in small parts. Review a  1000 lines of code which would be spanning several subsystems. This is the quickest way to get people either blindy approve or to discourage them from taking the time to review. Smaller changes make it easy to justify taking few minutes to look at code and make constructive suggestions. Also it eases the developers work fo writing the code to implement the suggestions.

Final Words-

Code quality is the most important factor for the success of a software. Try to use better coding standards across your team and company. If you are thinking to develop a successful software, consult with solace experts. We are here to help through consultation and development. You can hire php developers, android developers, ios developers, flutter developers of Solace Infotech for an effective software development. Connect with Solace and get a free quote for software development. We will be happy to help you.

How To Choose Right Mobile App Architecture For Your Business?

 

These days businesses are focusing on building the apps in order to target audiences simply and proactively, solve their problems and collaborating with a shared purpose. Applications generate revenue in various ways like charging small amount of money for use of app, charging for access to premium features of an otherwise free app or simply selling ad space. According to the report, there are 2.56 million apps on Google Play and Apple’s app store has 1.85 million apps. Companies and enterprises need to cope with rapid changes and trends in mobile app architecture development industry to achieve the desired results.

In order to succeed in this battleground, it is necessary to choose the right mobile app architecture. Most of the apps fail because of poor architecture. So we came with a detailed guide about how to choose the right mobile app architecture for your business. Before digging into the details, let us see what is mobile app architecture?

What Is Mobile App Architecture?

Mobile app architecture is a set of structural elements and their interfaces from which the system is built and their behavior in the framework of all structural elements. Simply, it is a skeleton of a program. Complexity of building high-quality architecture depends on the size of application. Right architecture will save a lot of time, energy and also cost in the future.

What Builds Mobile App Architecture?

Mobile App Architecture

Basically, mobile app development can be organized into different layers such as  presentation layer, business layer, and data layer. Let’s see the each layer in detail.

1. Presentation Layer-

This layer completely focuses on how to present the app to the end-user. It includes the components of User Interface and UI processes. Main objective of this layer is to check the accuracy and presentation of mobile app to the end users. It includes some important aspects like themes, colors, fonts and so on. Here, app developers decides each of the presentation techniques, features and location of the application. While developing the presentation layer, developers should determine appropriate client type that is cooperative and adaptable with infrastructure. 

2. Business Layer-

Business layer is completely inclined towards the business front, meaning that the way businesses present it in front of the end-users. It involves business components such, workflow and entities under two layers, namely service and domain model layer. Domain model layer denotes knowledge and expertise connected to a specific problem domain, service model layer focuses on  elaborating a fundamental array of app functions that will be available to end-users and clients in the mobile app architecture. Every small detail must be top-notch, as it is directly presented to the end-users. Business layer indicates base of mobile application. You can reduce the overall load by deploying business layer on user and backend server remotely.

3. Data Access Layer‍-

All the data related problems are considered at this stage. This layer fulfills all the unique app needs so eases the secured data transactions. Choosing perfect data format is important factor to consider in designing this layer. It protects app from any random invalid data input. 

5 Steps To Choose The Right Architecture For A Mobile App-

1. Audience Analysis-

A key to successful mobile app is to build an app as a solution to particular customer pain. Before you start development, it will be better to know the details of future clients- who they are, what apps they use, what they actually need. Think about how your mobile app will solve their problem. If your target audience is youngsters, you can include motion designs to your app UX, but in case of senior citizens app design should be simple. 

2. Develop A Test App-

From the audience analysis, create a solution that will fulfill the audience needs and solve their problem. If your user need platforms to perform tasks other than iOS and Android, go with cross-platform development. If these platforms are sufficient, go with the native app development only. After a decision is made, start developing the main functionality of your app. Create an environment that your customers want- for example, whether they want to work offline, have a specific navigation method, reach interesting content in a feed and so on. Choice of architecture is always linked with app’s ability to satisfy target audience. 

3. Key Functionality-

After completing the main preparations and reality check, you can turn to work with specific platforms and offline functions. This step includes determining how you will perform the app technically and according to some industry specific requirements also. Consider all the advantages and disadvantages of different models from the technical point of view.  For instance, native apps have best performance but need to install and are very expensive for users to download, web apps are SEO friendly and don’t require installation and have low performance. And progressive web apps improves the experience of web apps with greater reliability, engagement,and speed.

You should also ensure that your app includes offline functionality. Most of the users don’t like to rely on internet connection while using app, hence you should consider this too. Include synchronizations with server when the user is connected to the internet. For offline functionality, you need either native apps or PWAs. So it is better to use these two mobile app architecture options.

4. Development Team Skillset-

Native app development needs a detailed knowledge of Objective-C and Swift for iOS and Kotlin, java and android. Although most of the developers are acquainted with HTML and Javascript, most hybrid and mobile web frameworks depends. If they don’t have detail knowledge, you should train them.  

5. Optimize Your Budget-

Right architecture of a mobile app is balance between key responsibilities and cover them with budget. Once you get all the data about customer preferences, calculate the cost considering functions, advanced features and team constraints. It is also important to consider all the maintenance and support expenses. 

Tips To Building The Best Mobile App Architecture-

A well designed architecture is important for all apps as it eases the testing and debugging of app. Use of architecture for mobile app saves time, effort and costs. Here is a checklist to understand if your app has a good architecture.

• Flexibility- The selected solution should be easy to change and also errors are very less. Your modification to one element won’t change affect to another one.
• Extensibility- You can add as many functions as you can.
• Efficiency- App performs the tasks and functions in nay condition. System is effective and don’t affect with loads.
• Testability- Mobile app architecture is easily tested means number of errors decreases and its reliability increases.
• Understandibility-  Code should be understandable to developers
• Scalability- Development and updation time should be less. A good architecture allows development in parallel threads.

Wrap Up-

Creation of mobile architecture must be completed before development process begins. It gives a map of how various components of app should be organized and connect to each other. Knowing the above tips to select the best mobile app architecture will help you to choose the best architecture and develop a successful app that you want to. If you are thinking to develop a mobile app for your business, consult with solace experts. We are here to help you through consultation and development. You can hire android developers, ios developers of Solace team for an effective app development. Connect with Solace and get a free quote for app development. We will be happy to help you.

Top 10 Node.js Security Best Practices

 

Node.js is a Javascript runtime built on Chrome’s V8 Javascript engine. It is widely used for building scalable and lightweight network-driven applications. It can be scaled up easily horizontally as well as vertically. Apps development with Node.js are used for both client-side and server-side apps. It has an open-source Javascript runtime environment/ model which provides caching of single modules. Similar to the other programming languages or frameworks, node.js is susceptible to each type of web app exposure. Though the Node.js is secure, third-party packages may require more security standards to protect your app. According to the study, 14% of NPM ecosystem is impacted and 54% of the NPM ecosystem is about to be impacted indirectly. Here we’ll see the top 10 best practices for node.js security. But before going to the security best practices, let see, why do node.js projects have security issues?

Know the amazing new features of Node.js 15 at- What’s New In Node.js 15?

Why Do Node.js Projects Have Security Issues?

Open-source apps derive licensing and security risks from their open-source elements. Also, the security detecting tools like static and dynamic code assessment cannot detect open-source exposures efficiently. 

To detect open-source elements in Node.js, you need to assess the NPM index files which explain the dependencies. All things considered, these index files don’t incorporate reused open-source elements. Some of the time, open-source community open-source projects to lower time-to-market, speed-up development and add functionality. As a result, developers can launch code snippets, functions and techniques into files. Also lots of node.js web development projects include licensing terms other than real Node.js license.

Top 10 Node.js Security Risks And Solution Practices-

Node.js security issues can show you vulnerabilities like code injection and advanced constant threats. Let us see a list of Node.js security risks that may cause these vulnerabilities and its possible solution practices.

1. Validate User Input To Limit SQL Injections And XSS Attacks-

Cross-site scripting or XSS lets hackers to infect vulnerable client-side scripts into website pages viewed by various users. Vulnerable client-side scripts can cause data breaches. Also the hacker can use Javascript code. Reason for this is not validating input from users. So, whatever users type in the search field, if doesn’t discovered in the database, it will be sent back to them in the same old form. So, if a hacker puts JS code instead of the product name in the search bar, he can execute a similar JS code.

Solution-

One can validate user input. To prevent XSS attacks in Node.js, one can use output encoding methods or tools like Jade engine with in-built encoding frameworks. You can also opt for, XSS-filters or Validatorjs for this.

2. Implement Strong Authentication-

Having weak, broken or incomplete authentication mechanism is a next most common vulnerability. Mostly it is because, may developers think about authentication as “we have it, so we’re secure”. In fact, weak or inconsistent authentication is easy to bypass. 

Solution-

One solution is to use authentication solutions like OAuth or Okta. If you prefer to stick with Native Node.js authentication solutions, you have to know some things. When you create passwords, don’t use Node.js built-in crypto library, use Bcrypt or Scrypt. Ensure to limit failed login attempts, and don’t tell the user if it’s username or password that is incorrect. Rather, return a generic “incorrect credentials” error. Also, you need proper session management policies. Instead, return a generic “incorrect credentials” error. Also, you require proper session management policies. And be sure to implement 2FA authentication. If it all done in a proper manner, it can increase security of app to the next level. You can so it with modules like node-2fa or speakeasy.

3. Avoid Data Leaks-

It is easy to send all data for a particular object to the frontend and just filter what to show there. Also, attackers can easily get hidden data sent from the backend. For instance, imagine that you want to show a list of users who signed up for an event. You execute a SQL query to get all users for that particular event and send those data to the frontend, and there you filter it to just show the first and last name. But all the data you don’t want to show is easy to access through the browser developer console. This causes data seaks.

Solution-

Only send the data that is required. If you just need first and last names, retrieve just those from the database. It creates more work, but it’s worth it.

4. Regularly Scan Apps Automatically for Vulnerability-

Node.js ecosystem contains some libraries and modules to install. Generally, most of them can be used in your projects. It produces a security risk. You cannot be completely sure that it’s secure while using code written by someone else. 

Solution-

To resolve this, you must run regular automated vulnerability scanning. It helps to find dependencies with common vulnerabilities. Also, you can opt for NPM analysis for basic monitoring, yet consider using tools like Retire.js, WhiteSource Renovate, OWASP Dependency-Check, OSS INDEX, Acutinex, and NODEJSSCAN. 

5. Establish Logging And Monitoring-

Monitoring and logging are associated with Node.js security. As your main goal is to make mechanisms secure from start, but in fact it needs a continuous procedure. And for this, you need monitoring and logging.  

Solution-

Some of the hackers want to stay unidentified for a longer time, whereas some of them want to make your app unavailable that can be found out without logging. In such cases, log and metrics monitoring will help to detect the wrong matter. With a basic logging, you can’t get enough data for understanding if you get strange-looking requests from your app, a hacker or a third-party API. Some of the tools offer the precise layers to improve the protection of your system, depending on data. Data is vital to assess and identify probable exposures and invasions of your app. One can make various routines that implement depending on a few pre-decided system behaviors. Monitoring and logging explain everything that occurs inside an app. So the monitoring functions as an indicator of it will come to you if anything vulnerable is recognized. 

6. Manage HTTP Headers-

Know more at- https://solaceinfotech.com/blog/top-10-node-js-security-best-practices/

Secret Tips To Secure Your Data While Everyone Works From Home

Remote work has many benefits for employers and employees. Analysis has reported greater levels of job satisfaction, less stress and higher productivity. Many employers have given feedback indicating improved retention, while also being able to reduce office expenses. Numerous employers have given feedback showing improved retention, while also  being able to reduce office expenses. Despite these advantages, remote work also presents some challenges. On of them is- How to keep work related information secure when someone is accessing it at home? A survey found that entrepreneurs feel the risk for data breaches with remote work. However, proactively addressing security challenges by following the below steps will enable your team to work remotely without risking compromising your data.

Tips To Keep Your Data Secure While Everyone Works From Home–

1. Ramp up user-training efforts-

While criminal attacks are responsible for most of data breaks, human error is also a significant contributor to digital-security issues. An analysis found that 36 percent of all such cases were directly attributable to human error. Phishing messages are one of the most widely recognized threats facing employees, tricking them into clicking on fraudulent links that are intended to install malware or steal account information.

These hacking tricks can be very complex, even going so far as to imitate official communications from your organization or its partners. Since employees are working outside the workplace, you should ensure that they understand the dangers of phishing and other attacks. Instructing them to recognize fraudulent communications will keep numerous serious breaches from ever turning into an issue.

2. Require two-factor authentication-

Regardless of whether a work-issued PC is stolen or your employee uses the same password for work as they do for another account that has been compromised, there are endless roads that attackers can use to access employee information — even when your team is using  advanced digital-security best practices. To avoid all this, many companies are requiring two-factor authentication when employees sign in to their accounts. Recently, “Two-factor authentication adds a layer of redundancy to ensure that only the actual account owner can access their account. The attacker can steal the employee’s password, but won’t have the phone that receives the verification code.

They definitely wouldn’t have a fingerprint which is used in some systems. Including one extra step to login process could make all the difference to keep hackers out. Two-factor authentication systems can also serve as a kind of alert when an unauthorized user is attempting to log in to an account. This will enable remote workers to know when they have to change their secret word or get in touch with you about a potential issue. This will help remote employees to know when they should change their password or contact you about a potential issue.

Know more at- https://solaceinfotech.com/blog/secret-tips-to-secure-your-data-while-everyone-works-from-home/

Important Rules For Writing Idiomatic TypeScript

Important Rules For Writing Idiomatic TypeScript

Whether you believe or not, but the fact is TypeScript is spreading like wildfire. According to a survey, it was listed as the third most- loved programming language and the fourth most wanted. 

It’s so inevitable since it has replaced vanilla JavaScript as the language of choice for many packages in the JS ecosystem, with some like Yarn even, going similarly as rewriting their entire codebase in TypeScript. We feel one reason for this gigantic rise to be the fact that TypeScript fundamentally is simply JavaScript. This makes the entry bar a lot lower for existing JavaScript developers, and the way that it’s typed may also attract other devs who prefer the features typed languages provide.

This cuts the two different ways, as well, because the simplicity of choosing TypeScript has led to some cases where the language is not being used as effectively as it could be. Numerous developers still write TypeScript like they’re writing JavaScript, and this brings with it some disadvantages. We’ll be taking a look at some real world code written in TypeScript that could be improved to use the language’s strengths.

Rules-

1. Don’t neglect interfaces-

In TypeScript, an interface basically specifies the expected shape of a variable. It’s as simple as that. Let us see the simple interface to drive the exact idea.

interface FunctionProps {
  foo: string;
  bar: number;
}

Now if any variable is defined to implement FunctionProps, it will have to be an object with the keys foo and bar. Some other key addition will make TypeScript fail to compile. Let us see this.

const fProps: FunctionProps = {
  foo: 'hello',
  bar: 42,
}

Now we have an object fProps that implements the  FunctionProps interface correctly. If I deviate from the shape specified in the interface by, say, writing fProps.foo = 100 or deleting fProps.bar, TypeScript will complain. fProps’ shape needs to match FunctionProps exactly or there will be hell to pay.

fProps.foo = true ❌ // foo must be a string

Since we’ve gotten that out of the way, let’s look at an example. Take this React functional component method:

const renderInputBox = (props, attribute, index) => {
  return (
    <div key={index} className="form-group">
      {renderLabel(attribute)}
      <InputBox
        name={attribute.key}
        value={!!isAssetPropAvailable(props, attribute) && props.inputValue}
        onChange={props.handleInputChange}
        placeholder={`Enter ${attribute.label}`}
      />
    </div>
  );
};

While this is totally fine if you were writing JavaScript, it doesn’t take advantage of interfaces. For what reason is this awful? You don’t get any IntelliSense features that you otherwise would if the method’s argument were typed.

Also, you could easily pass in a prop of an alternate expected that shape to this method and you would be none the wiser because TypeScript would not complain about it. This is simply vanilla JS, and you might as well eliminate TypeScript from the project altogether if everything was written this way. How might we improve this? Take a look at the arguments  themselves, how they’re being used, and what shape is expected from them.

We should begin with props. Look at line 7 and you can see that it’s supposed to be an object with a key called inputValue. At line 8, we see another key being accessed from it called handleInputChange, which, from the context, has to an event handler for inputs. We now recognize what shape props should have, and we can create an interface for it.

interface PropsShape {
  inputValue: string;
  handleInputChange: (event: React.FormEvent): void;
}

Proceeding onward to attribute, we can use the same method to create an interface for it. Take a look at line 6. We’re accessing a key called key from it (clue: it’s an object). On line 9, we’re accessing another key from it called label, and with this information, we can create an interface for it.

interface AttributeShape {
  key: string;
  label: string;
}

We can now rewrite the method to look like this instead:

const renderInputBox = (props:PropsShape, attribute:AttributeShape, index:number) => {
  return (
    <div key={index} className="form-group">
      {renderLabel(attribute)}
      <InputBox
        name={attribute.key}
        value={!!isAssetPropAvailable(props, attribute) && props.inputValue}
        onChange={props.handleInputChange}
        placeholder={`Enter ${attribute.label}`}
      />
    </div>
  );
};

consider the benefits of doing this:

• You get IntelliSense wherever you use this method. And you can immediately see what its arguments should look like without having a look at it.
• You can never abuse this method because TypeScript won’t allow you to pass in arguments with wrong shapes.
• Any change to the method definition- possibly index is now a string- and TypeScript will prevent your code from compiling until you fix all the instances where the method was used.

Read more at-

http://b.link/typescript28-src_blogger

Mobile App vs Web App - Which is the right one for you?

Mobile App vs Web App – Which one is best for you?

It has been noticed that the average time spent on mobile devices is estimated to go beyond the time spent watching Television. And is the appropriate reason for developing a targeted app for your business. Developing an application for your business is considered as the fastest route to accelerated development.

As technologies for both web and mobile applications have developed rapidly, organizations fall into the problem of selecting the right medium to reach target customers. There are situations in which organizations can develop web applications or a mobile application because of budget constraints.

However, most business people don’t know the difference between them, and the impact on their business while picking the one. Thus, the task of evaluating the appropriate one for their business is on-to them. This turns into a ‘Mobile App Vs Web application’ situation for them.

What is a Mobile App?

Mobile Apps are a part of our daily schedule and there are very few who live in an isolated world away from Mobile applications. Any application that can run on a handheld or mobile device (like a smartphone or tablet) with a function of providing a service to its users is categorized as a mobile application.

iOS and Android are leaders in the Mobile App domain, trailed by Microsoft. Many organizations focus first on developing applications for iOS and Android and target the rest of the platforms when these catch up. This is because of the broad user base for Android and iOS in the worldwide market, both covering around 75.85% and 22.87% respectively. A broad distinction of Mobile Apps can be made into Native and Hybrid mobile applications.

You can also know the best mobile app development trends at- Best Mobile App Development Trends.

Native Mobile Application-

Read more at-  http://b.link/mobile90-src_blogger

Why Ionic framework is best for mobile app development?

The IONIC framework is an extensive open source SDK, which is used to develop hybrid portable mobile applications compatible with CSS, JavaScript and HTML5. It is unified around the feel, look and UI cooperation of an application. This is the reason behind why IONIC framework is the one-stop solution for each individual who needs to rapidly develop their next application. It is preferable to all who need to give their application a good look and also orientation. Let’s go through some of the reasons why you should choose IONIC framework for your mobile app.

Also know – 9 Effective Tips To Reduce Mobile App Development Cost.

Reasons to choose Ionic framework to build mobile app-

1. It is free-

This is the best advantage of using Ionic Framework. Developing an application, starting with research and completion in a marketing campaign, it is very expensive. If you are confused about whether to use it or not, you could try it as it doesn’t cost you anything. 

2. Easy to move across platforms-

When building an application, it is normal that you are searching for success and think that possibly you’ll spread across platforms, either if you start with Android, iOS, Windows Phone or other operating systems. The Ionic framework gives you the chance of doing that more effectively, because the language makes your application easily converted from one operating system to another. If you choose a native language, instead of hybrid, you would need to invest some time and money into learning the particular programming language for every platform.

Also know- Android or iOS App Development: Which is Better For Your Business?

3. Open source framework-

The facts demonstrate that generally open source frameworks are unstable, they have been noticed in the past to be so – yet we assure you that the Ionic Framework itself in being a very stable platform.

4. Great User Interface–

The Ionic framework accompanies a great UI. The elements have predefined styling. This gives all the elements look and feel of the native elements. The Android applications get the Machine design touch and iOS will have the modern look. It makes designing prototype faster and simple no need to include own touches.

4. The base framework of Ionic is Angular-

Angular is a popular framework in developing mobile applications and web applications. Hence, regardless of whether you haven’t met with this programming language previously, after working with it, you will also have the option to develop web applications. It also has a lot of advantages like extending the syntax of HTML to include components of your application, and also data binding.

5. Ionic makes use of Cordova Plugins-

If you don’t know the term of plugin, it is a piece of code connected to your application that is coded in JavaScript, which allows you to do various things because it is close to the native language of the platform you’re working on. Cordova Plugins help you to get access to various features of the operating system, as Geo location, Camera, Battery and so on. Relying upon what your application does, you will use at least one of these so that you have an optimal working application.

6. Community support-

The great thing about the Ionic Framework is that it has a huge, active community, that is ready to help on various forums or particular YouTube channels. If you look through social media, you can discover even the founders of Ionic Framework, because they are ready to help their users to develop the perfect application.

8. Access To Modern Web Technologies-

The ionic framework provides the benefit of both Cordova and Angular in one place. Adding to it, you can also use TypeScript that allows you to utilize features of ES6 JavaScript. They continue updating and adding new technologies.

9. Powerful CLI-

Ionic has a simple CLI (command line interface). It makes it simple to create a new project, compile your project to native projects or anything you need. As a developer, you will like this tool since it makes your life much easier.

Conclusion-

You have many reasons to use this framework. May be the most beneficial  being that it is a free working space. Go ahead and try working on this framework. If you are facing any difficulty to build mobile app with ionic framework, consult with solace experts. Team is well experienced to give you the best solution as per your requirements with latest trends. Develop your mobile app with native for more effectivity. We will be happy to help you.

How to build a simple Svelte JS app?

In the JavaScript world, a new framework comes out each day. The thought behind such advancements are quite often the equivalent yet with a couple of significant improvements. Modern component based frameworks include ReactJS, VueJS, emberJS, Angular and so on. You can see the comparison between these frameworks at- Angular vs. React vs. Vue: A 2019 Comparison (Updated).

Here, we will take a look at one of these new frameworks, known as SvelteJS. This builds on the basic knowledge of HTML, CSS, and JavaScript, to give a unique and also understandable way to build platforms for the web.

Svelte serves as a center ground, an approach to begin with the fundamentals while getting used to modern concepts like component driven development, scoped versus cascading CSS, templating, declarative functions, and so on.

Prerequisites–

Before we go any further, we assume that:

• Node.js ≥v6 is installed on your machine
• npm is installed on your machine
• Familiarity with HTML, CSS, and JavaScript
• A basic understanding of component- based frameworks like, ReactJS is good but not required

The difference between Svelte and component- based frameworks-

Svelte is more understandable for beginners and it avoids getting lost in a universe of hot reloads and components because it allows for application of DOM type manipulation. Svelte compiles all the generated files down to a single file (bundle.js). Svelte is a framework, which means it doesn’t work with the virtual DOM but writes code that carefully updates the DOM when the state of your application changes.

Building a bookstore app with Svelte JS-

1. Getting started-

There are a few different ways to get Svelte app and running for a project. With the goal of this article, we will work with degit which is a software scaffolding tool. To start, run the following commands:

• npx degit sveltejs/template {project name }: In this case I am calling it Book-app-svelte

     npx degit sveltejs/template Book-app-svelte

• Cd into project directory
• Run npm install
• Run the application by running npm run dev

After setting up, in the main.js, we should see a “hello world” that renders into the app.svelte – this would be a decent time to take note of that parts in Svelte are saved with .svelte extension.

import App from './App.svelte';
const app = new App({
    target: document.body,
    props: {
        name: 'world'
    }
});
export default app;

The above code shows an easy set- up with the application component accepting a prop of name and also focuses on a place in the HTML file.

In the app.svelte we can see some sort of VueJS format:

<script>
    export let name;
</script>
<style>
    h1 {
        color: purple;
    }
</style>
<h1>Hello {name}!</h1>

Here the main.js gets handled by exporting the name variables to allow it to be controlled from outside.

2. Creating a dynamic book component-

While creating our components, there are a couple of things that are important about SvelteJS:

• Styles are scoped inside components – so a h1 styled in one component won’t influence another in an alternate component.
• We can characterize functions that are connected dynamically.

In this section, we will take a look at creating a dynamic event with Svelte and connecting the book.svelte component with app.svelte and passing props.

The initial step is setting up the book component and exporting variables which can be set from the parent tag in app.svelte:

<script>
    export let bookTitle;
    export let bookPages;
    export let bookDescription;
</script>
<style>
    div{
        margin: 1rem;
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.26)
    }
    h1{
        font-size: 1.25rem;
        margin: 0.25rem 0;
    }
    h2{
        font-size: 1rem;
        margin: 0.25rem 0;
        color: aqua;
    }
    p{
        margin: 0.25rem 0;
    }
    button{
        font : larger;
        padding: 0.15rem 0.5rem;
        background-color: #1b1a1a;
        border: 1px solid  aliceblue ;
        cursor: pointer;
        color: white;
    }
</style>
<div>
    <h1> {bookTitle} </h1>
    <h2> {bookPages}</h2>
    <p> {bookDescription}</p>
    <button> Add </button>
</div>

From the above code, we can see that we have variables that are being dynamically passed to the tags in the div. They have their values originating from the app.svelte which we will see after and also where the greater part of the dynamic manipulation happen. In the app.svelte we have imported the book segment and this is the place we will do a great deal of the dynamic manipulation.

<script>
    import Book from './book.svelte'
    let title = '';
    let pages = 0;
    let description = '';
    function setTitle(event){
        title = event.target.value;
    }
</script>
<style>
h1 {
        color: purple;
        
    }
    section{
        margin: auto;
        width :30rem;
        
    }
    label,input,textarea{width: 100%}
</style>
<section>
    <div> 
        <label for="title">Title</label>
        <input type="text" id="title" value={title} on:input={setTitle}/>
    </div>
    <div>
        <label for="pages"> pages</label>
        <input type="number" id="price" value={pages} bind:value={pages}/>
    </div>
    <div>
        <label for="description">Description</label>
        <textarea rows="3" id="description" bind:value ={description}/>
    </div>
</section>
<Book bookTitle={title} bookPages={pages} 
bookDescription={description}/>

From the code model above, we can see that inside our script tag, we have also set variables to empty ” “. These are the values that are automatically updated, we can likewise notice that setTitle, this function is used to set a title to focus on the object that calls it within the on:.

Keep in mind that we call the function without bracket since we don’t need it immediately executed. Rather, we are attempting to set up a refers so that  Svelte can call the function on each keystroke.

We use the on: to add event listeners in Svelte. We can utilize this to listen to the input event, and the curly brackets are used to show dynamic input. Since the function we have uses two-way binding, we can utilize it on different tags using the bind: This binds the value property at that point binds to the price variable. We likewise do this for the description.

At last going back to Book tag is where we update the props being sent out in the book component. We do this by dynamically passing the value of title, pages, and descriptions utilizing curly brackets {}.

3. Displaying book information-

Since we have the card updating when we input value, the next step is to ensure that we can add books to our bookstore. The primary thing we need to do is make our button a standalone component, so as to have the option to use it in the other two components. We do this by creating a button.svelte and importing it to the book and application component respectively.

<style>
  button{
        font : larger;
        padding: 0.15rem 0.5rem;
        background-color: #1b1a1a;
        border: 1px solid  aliceblue ;
        cursor: pointer;
        color: white;
    }
 
</style>
<button on:click >
    <slot/>
</button>

You may see an on:click property in the button tag, this is utilized to trigger the event listener in the original calling of the button so that other importations can be able to actually work with the onclick event.

Eg., app.svelte

<Button on:click={addBook}>ADD Book</Button>

This engages with an addBook function that allows the button to add books dynamically to an array:

let books =[]
function addBook(){
        const newBook = {
            title : title,
            pages : pages,
            description: description
        };
        books = books.concat(newBook)
    }

The above code exists inside the script tag and what it does is, call all the properties of the book from the form and concentrates them. We use a concat because push doesn’t change the book variable. It just changes the array but assigning concat to a new value with trigger a change.

We now have an array of books which is shown conditionally using an extraordinary markup that Svelte gives us:

{#if books.length === 0}
    <p>
       Add a new book 
    </p>
    {:else}
    {#each books as book}
        <Book bookTitle={book.title} bookPages={book.pages} bookDescription={book.description}/>
    {/each}
{/if}

What this does is that it prompts the user to include new books at that point shows each new block as new card: And displays the information on the card once the user updates:

4. Adding the price of books-

To accomplish this, we should make another component called purchase.svelte. In the script tag, we would need to export the books variable with the goal that it can be updated by the book tag, by passing the information as props in the app.svelte.

In the app.svelte we include an empty array in the script to hold the purchased books. Now how would we add books to these purchases? We will utilize the buy button in the book component and then, add the purchaseBook function to script and bind to the button utilizing on:{purchaseBook}. We at that point use the create a dispatch function from the Svelte’s custom library.

At that point we can link the function to the Book tag by including the on:buy = {purchaseBook}. This event dispatches from our purchaseBook function.

function purchaseBook(event){
        const selectedTitle= event.detail;
        purchases = purchases.concat({
            ...books.find(book => book.title === selectedTitle )
        });
    }

Final Words-

From the above example, you came to know about building a simple Svelte JS app. If you’re still facing a difficulty for developing a Svelte JS app, consult with Solace experts. Well experienced team is here to help you for better development. Develop your best Svelte app with Solace to achieve the success you deserves.