10 Best Angular Alternatives That You Must Know

 

AngularJS is an open source web framework backed by Google. It is the first front end framework based on MVC design pattern. This allows two-way binding that enables to reflect changes continuously on a page. AngularJS framework provides features like dependency injection, ready to use templates, testing etc. It also allows development of single page applications with neat and clean code. And so AngularJS is unique. Apart from these advantages and uniqueness, AngularJS has some disadvantages too. These advantages can affect application and degrade the user experience. Let us see which are those disadvantages-

• Its performance is slow due to its dirty checking method.
• CLI documentation doesn’t provide good information. 
• Angular has limited SEO options and poor accessibility for search engines.
• It’s monolithic

Because of these disadvantages, many developers are searching for its alternatives. So here we came with alternatives for Angular.

10 Best Angular Alternatives-

1. Vue.js-

Vue.js is an open source and much simple, flexible framework as compared to Angular. Some of the prominent features of Vue.js are its components, templates, reactivity, routing, transitions etc. It is powerful enough to build single page applications. Vue has some similar concepts from React and AngularJS. It works in the view layer of application and has a virtual DOM feature and supports additional libraries that are similar to React. Vue is similar to Angular in terms of template style, but more powerful in terms of performance. It offers features like Reactive interfaces, CSS transitions & animations, custom filters and very simple code.

Vue.js is gaining popularity because of its easy integration with third party libraries. Companies like Netflix, Facebook, Xiomi are using Vue.js

2. Aurelia-

It is a next-gen modern open source UI framework for developing mobile apps and web apps. This framework allows designing of complex apps by using pure JavaScript or TypeScript. Aurelia is clean framework with nice API. Also it is simple, concise and at the same time, it is powerful and flexible. It has a collection of libraries that can be used separately and when combined, they form a robust and powerful framework.

This framework adopts modern, reactive based approach and also offers features like forward thinking, two-way data binding, custom HTML elements, testing etc. Developers who are interested to work on cutting edge JavaScript applications, Aurelia is a best angular alternative.

3. React-

React is an open-source, component-based frontend library maintained by Facebook. These days, it is one of the most popular Javascript libraries among the developer community. It is mostly used to create single page applications. It has amazing features like virtual DOM that can be rendered at client-side or server-side. Client side DOM plays an important role in complex data manipulation. Apart from virtual DOM, it has great features like class-based components, lifecycle methods, JSX and so on. React is flexible and declarative to build web user interfaces. It works on MVC pattern and plays as V in it. Popular companies like Facebook, Netflix, twitter, Instagram, Whatsapp, dropbox uses React. 

4. Backbone.js-

It is a lightweight Javascript library designed for developing single page applications. Backbone.js is based on Model-View-Presenter design pattern that abstracts data into models, DOM into views and binds these two using events. It provides great features like RESTful JSON interface, Syncing with back-end, event driven communication and allows building web applications and mobile applications in an organized and well-structured format.

5. Meteor.js-

It is a full-stack platform to build web and mobile applications completely in JavaScript. This framework helps to rapidly develop apps. It comes with all the features one needs for frontend development, backend development, database management and business logic. Community of Meteor.js is continuously growing and if you want to learn powerful framework there are lot of resources freely available on websites and youtube. One of the biggest advantage of Meteor.js is, it is pure JavaScript, you don’t have to learn any other framework. You don’t need to worry about server-side packages that run on node.js because you only need Meteor.js packages to access the database. With real-time database, changes are reflected effortlessly in the UI and any change in UI is reflected back in real-time database within seconds. Shelf, Digital services, Esri, PolicyBazar.com, Accenture are some of the popular companies that using Meteor.js.

6. Ember-

It is an open-source Javascript framework that allows developers to build scalable single page applications. Ember framework is based on Model-View-View-Model (MVVM) pattern. It is used by popular websites like Vine, Linkedin, Nordstrom and so on. Also, it is possible to build desktop and mobile applications with ember framework, Apple music is an example of this.  Ember offers great features like ember templates, ember CLI, ember inspector tool that is used for debugging. It offers friendly API that is easy to understand and work with.

7. Mithril-

This is an open-source client-side JavaScript framework. It is faster than other angular alternatives and is used to build single-page applications. You can develop mobile apps and web apps using Mithril. This framework is good to use, if you want to work with pure JavaScript. Tasks are performed efficiently with this framework. Mithril makes use of virtual DOM, lifecycle methods, key-based reconciliation and organizes views through components. It has optimized and less code that results in higher performance. Also, it has a well detailed documentation which is easy to understand and relate real world applications. Popular companies like Nike, Vimeo, Liches and so on uses Mithril framework.

8. Polymer-

It is an open-source JS library created to build web applications using components. It is developed by Google developers and contributors from GitHub. Popularity of Polymer can be understand from the fact that companies like Netflix, Electronic Arts (EA), Coca-Cola, IBM and McDonald’s employ Polymer with google services like Google Play Music, Youtube and its part YouTube Gaming and new Google Earth. Polymer offers great features like lightweight system, flexible layout components and an easily approachable ecosystem.

9. Knockout-

Knockout is released in 2017, and since then, it has been gaining ground in the developers community as a standalone JavaScript implementation of the Model-View-ViewModel pattern with templates. It is popular among beginners because it is easy to learn and has a low entry barrier. Important features of Knockout are deep browser support, built-in exercises for easy learning, easy data binding, built-in templating support and dynamic models.

10. Sencha Ext JS-

It is an application framework used to build interactive web apps for multiple platforms. Sencha Ext JS is a full framework to build single-page applications, and also used as a minimal component framework for creating dynamic grids on static pages. Though it was built as an add-on library extension in 2007, new versions reduce dependencies on external libraries and make their use non-compulsory. New updates enables the framework to be used both as a single script and as a supplement for app building with Sencha Cmd.

Wrap up-

Each framework has its own set of pros and cons. So choosing the best framework for development might be difficult task for most of you. You should focus on the project and decide according to the need of project which framework to go with. There are many alternatives available that have been gaining popularity. Learning the core concepts will help you to easily adopt any framework.

If you are still confused to choose the best framework for your next project as an alternative to angular, consult with Solace experts. We are here to help you through consultation and development. Feel free to reach us for an efficient and effective web solution development. You can also hire angular developers of Solace team on flexible basis. We will be happy to help you.

What’s New In PHP 8.0?

 

PHP is continuously evolving and PHP 8.0 is released on November 26th, 2020. It is a mega edition as it explores a lot of features and performance improvements and deprecations to the language. The most talked about feature is the JIT compiler. Performance improving features like JIT deserve the popularity, the syntactical improvements may have more of a true impact for PHP practitioners- in the short term. 

Here, we’ll discuss some of the notable features and improvements in PHP 8, including the JIT compiler and syntactical improvements that developers will surely like.

What’s New Features And Improvements In PHP 8.0?

1. JIT (Just In Time) Compiler-

One of the most exciting additions to PHP 8 is JIT compiler. As we all know that, php is an interpreted language, means it runs in real time, instead of being compiled and run at launch. JIT brings compiled code to PHP, and with it, better performance in some situations. It you’re working with web applications as most PHP developers are, JIT will not help much as these performance benchmarks show. However with the tasks like 3D rendering, data analysis, artificial intelligence and other long-running processes, it makes a huge difference. These are not common applications of PHP, but many developers are branching out, so this makes the engine more flexible. JIT makes certain to open PHP’s horizons and bring in devs interested in trying new things. For already existing projects, it might not do more. Prior to implementing JIT, ensure that you’ve tested it in an isolated environment and see whether it improves your performance or not.

2. Attributes-

Now, PHP supports attributes, or small pieces of metadata you add to parts of your code: functions, classes, parameter etc. Which means you don’t need to use docsblocks as a workaround. 

You can add various attributes to any part of the code, import them with use statements and add parameters to attributes also. Add attribute to your code with signs: <<Attribute>>.

<<ExampleAttribute>>
class Foo
{
<<ExampleAttribute>>
public const FOO = 'foo';

<<ExampleAttribute>>
public $x;

<<ExampleAttribute>>
public function foo(<<ExampleAttribute>> $bar) { }
}

$object = new <<ExampleAttribute>> class () { };

<<ExampleAttribute>>
function f1() { }

$f2 = <<ExampleAttribute>> function () { };
$f3 = <<ExampleAttribute>> fn () => 1;

Note that attributes are not backwards compatible and will cause errors if ported into older versions of PHP. The docblock workaround is functional, however it’s always been somewhat clunky. Now, you can add attributes directly. For such a small addition, it has huge implications.

3. Union Types-

Key parts of PHP are, assigning a variable as an integer, boolean, null and so on. But prior you could only assign a variable with a single type. Now, they can be assigned with two or more types: a union type! For instance, you can assign integer and float type, and it can use either one of those. These are specified with line between each type, for example: int|float.  You can not combine void and also duplicate or redundant types like int|int are also not allowed.

You could already use PHPDoc annotations to make something like a functional association type, but now you can avoid the inconvenient workarounds and simply assign variables with different types.

4. Match Expressions-

It eliminates the guesswork associated with determining whether failure to break within the switch case is intended or not, and simplifies the common pattern of assigning a value according to match. When used, the value you pass to match() is compared with the expression is on the left hand side. Whether it is a value or an expression, the value you pass to match() should match it for it to be selected. When matched, the expression on the right is evaluated and its return value returned; expressions must be callables or a lambda functions, and no multi-line closures are allowed. 

5. Inheritance With Private Method-

In older versions, equivalent inheritance checks on public, protected and personal methods. In another way, private methods follow identical signature method rules as protected and public methods. Not making sense; notwithstanding, private methods won’t be accessible by child classes. This RFC grabbed hold to stop inheritance checks to be performed on private methods. Also, private function didn’t add up, so doing so will now show a warning as- Private methods are not conclusive as others never override them. 

6. Weak Maps RFC-

WeakMap implementation added in PHP 8. It holds references to things, disallows objects from being garbage collected. Consider an example of ORMs; generally they implement caches holding references to entity classes to improve relations between entities. Those entity objects can’t be garbage collected as long as this caches references them, although the cache is just a reference. Caching layer collaborates with weak references rather than maps. PHP will garbage collect these objects when nothing works. ORM’s help to manage several hundred, if not thousands of entities within an invitation, weak maps offer a resource-friendly way of handling objects.

class Foo
{
private WeakMap $cache;
{
return $this->cache[$obj]
??= $this->computeSomethingExpensive($obj);
}
}
Allowing::class on objects rfc

A small but useful, new feature:::class on objects instead of using get_class() on them. It works equivalently as get_class().

$foo = new Foo();
var_dump($foo::class);

Know more at- https://solaceinfotech.com/blog/whats-new-in-php-8-0/

Top 11 Mistakes To Avoid While Developing Wearable App

 

These days, wearable technology becomes more and more popular, and so many companies are thinking of developing wearable apps. But it is important to remember that apps for wearable tech require unique design and functionality. Providing important data in a wrong way could be a costly blunder for app developers. So here we’ve curated some points that you should avoid while developing wearable apps. 

Know the basics of wearable apps development at- Wearable Apps Development- An Overview

Top 11 Mistakes To Avoid While Developing Wearable App-

1. Fail To Maintain Assumptions-

Most of the time while developing a wearable app, startups and big organizations failed to understand the issue they are trying to solve. And so companies can be crushed or burnt out. 

Before starting development of a wearable app, validate your assumptions. Consultation with medical and technological experts to help you do this appropriately. This helps you to develop a successful wearable app.

2. Forgetting Efficiency-

Wearable are valuable because they notify you about something timely, meaning you should not bother users for small things. Generally, wearable devices have limited power and no one will want to use your app if they can’t get through the day anymore. So keep it efficient.

3. Developing App On Today’s Devices And Top Sensors-

Investing too much in today’s top hardware is interesting but can cause problems in the future. Wearable technology is still searching strong use cases and supporting infrastructure. Means the wearables that today you see will most likely get outdated by the end of third-fourth year. The very notion of connected intelligence showcases that the future of wearable gadgets lies in them going beyond mere connecting, sensing, and reporting. The wearable device should process data independently and turn into an intelligent node which in itself can perform activities around embedded processing, connectivity and sensing. So if you’re thinking to put resources into wearable app development, you should ensure that it is made of an intelligent node and and can possibly turn into a full-fledged computing ecosystem. With this objective, if you limit your application idea on the device and sensor, it will prove to be a grave wearable application mistake.

4. Trying To Include Many Features-

In a race to deliver a unique product, usually entrepreneurs includes too many features and functionality sets in wearables. How this could be a mistake?

• If you add too much information or functionality set, users will either wind up not using them or abandoning app together.
• Battery life of wearable devices is not strong and long lasting as in smartphones. So, when you load wearable apps with too many features, you bring down the battery life even down. 

5. Keeping Launch Date Above In-Depth Testing –

Greatest mistake that you can do is hurry your wearable application developers into application launch with conducting proper tests on them. At the development stage each feature seems important and viable, it is only after you test in a pool of prospective users you get to know the reality of your application’s effectiveness. There are many things that could not be right with your wearable application. You should ensure seamless connectivity between hardware and mobile application, also ensure that the zero bloatwares which would wind up consuming battery life etc.

While testing your wearable app, you must keep in mind that the ecosystem is made of hardware, software and wearability. Until you assess all these three domains together, you won’t ever be able to fully emulate the complete user experience.

6. Investing More On Hardware-

We know that digital technology moves rapidly and hardware is no exception for this. Be certain not to build or put resources into your entire budget for hardware that could easily become out-of-date. So it is good to invest in software with the latest technologies.

7. Not Considering Security And Privacy-

Wearable devices are  rapidly gaining popularity and most of them are related to health-monitoring apps. It is necessary to think about security and privacy seriously because the user’s health data is more sensitive.  Be sure to remember to do security and privacy impact assessments during the development lifecycle.

8. Not Balancing Design Functionality-

Companies can avoid the mistake of creating functionality for use cases that early adopters will be excited about using, but that later user groups could find unfeasible or impractical for wearable. While developing costly features, a disciplined approach that balances short term “wow” factors with long-term customer viability will enable early adoption and staying power.

9. Need Of More User Input-

One of the main advantages of wearables is automating systems to avoid user physical interaction. So by avoiding spending time on getting user inputs could save a lot of time and resources too. The less time users need to spend interacting with the application the more convenience it offers to them—which is the main purpose of wearable technology.

10. Deployment Of Features Without Detail Client Feedback-

Deploying product features without customer feedback can be a costly mistake for you. Rapid iteration and learning are important for growth but user feedback is core to product usability. Always take sufficient time to know the problems of customers as a starting point. And incorporate the necessary changes in app before deployment.

11. Investing Before Market Study-

App idea for wearables, each feature many seem to be viable and great, but it is important to do a thorough market study before we build those features. A detailed study followed by a deep understanding of the competitive landscape will help to save a great deal of investment.

Final Words-

These are some of the common mistakes that most of the companies make while developing a wearable app. So a thorough research is necessary for successful wearable app development. If you are developing a wearable app and making the same mistake, be cautious before it spoils your app market. Do a thorough research and make priorities for necessary features. 

If you’re thinking of building a wearable app. We are here to help you through consultation and development. You can also hire android developers and ios developers of Solace team for an effective and secure wearable app development. Connect with Solace and get a free quote for secured wearable app development. We will be happy to help you.  

Key Points To Consider While Developing Wearable App

 

Prior to decade, it was difficult to build applications for smartphones by a mobile application development company. But this has taken a leap and now they are developing apps for wearable devices and smartphones. In the last few years wearable apps and devices have got more attention from users worldwide. Wearable devices have become one of the most essential parts of gadget lovers and millennials. And so many tech firms like Google, Apple, Samsung etc. have invested in developing world-class wearables that get accepted by users instantly. Small error in development can result in failure when you compete with tech firms. So before starting wearable apps development you must know some key consideration. Before going to the considerations, let’s analyze the reason for developing wearable apps.

Why Do You Want To Create A Wearable App?

Every year, wearable market is expanding and so in order to become successful in the wearable industry, it is necessary to find what type of app you want to develop? Is your app unique in the market? Why should people use your app? Answering these questions will help you to get better app idea before starting your wearable app development. Let us see the factors that you should consider while developing a wearable app.

Factors to Consider for Wearable App Development-

1. Selecting Apps For Device-

One of the important aspects of a wearable device or app is its size. Wearable app or device should be portable and of a size that can be worn. So as a developer you can develop several apps for smartphones with the same idea, but it is not possible for wearable devices. Because computing process for wearable devices is different, also they have some limitations, unlike mobile apps. Thus you can’t simply continue loading the wearable device with applications as it will hinder the functioning of the device and applications. So you need to choose carefully the applications that you want to incorporate in the wearable device. 

2. Improve User Experience-

All the wearable devices and wearable apps, intended to give the best User Experience (UX) to the end users. One most essential advantage of wearable devices here is that the device consists of some features of a smartphone that you can operate instantly in it. We know that wearable devices are new in market so there is still a wide scope for improvement and developers might face some issues while integrating new features. So you do more research, implement it and provide innovative solutions in wearable apps.

3. App Complexity-

Wearable apps cannot provide the same performance & usability same as that of standard apps present on smartphones. So as a developer, you should decide the important features that they should include in wearable apps and keep irrelevant features out that will make the app clumsy. So before starting development, make a thorough analysis of relevant features and irrelevant features, also know the priority of each feature. It is important to always keep some space for improvement as technology is changing rapidly.

4. Design Specifics-

Some specific types of APIs can be used only for wearable apps development. Sometimes when particular apps can’t run on devices built by the same manufacturer. Mobile app APIs cannot be used in wearable apps. The UI structure is an important aspect that you must consider. It depends on device specifications and offers better functionality through stable interaction with different sensors on the device.

5. Integrate With Smartphone-

Regardless of restrictions while developing a wearable app for OS like android and ios, it is important to integrate app with such platforms. Both iOS and Android offer limited tool resources when one is developing an application without integrating the wearable application with the smartphone your application or device will suffer. Mainly this is because the users of wearable device want the app of device to be integrated with their smartphones.

6. Avoid Over-Architecting-

As a developer you should incorporate a lean strategy that enables a swift creation of hypothesis and prototype. While creating a new application with attractive features, there is always the temptation to add over-architecture in the way of user experience. When this occurs, the developers should search for the capabilities that the new technology comes with and stress test the particular feature during the smartwatch application development process.

7. Security-

All kinds of wearables are extremely personal devices. They carry lots of sensitive data related to your location, health, preferences etc. Prime goal of a developer is to secure the data, both when it is being captured in the wearables and when it is shared with a connected device. Now, to ensure the security of data, you can use advanced technologies, like Blockchain, AI and solid encryption modules. 

8. Testing The Wearables And App-

Quality assurance of wearable app is different from testing of a smartphone app. There are various things that testers of wearable apps have to measure on an intricate level. You must focus on the below features-

• Usability
• Functionality
• Installation
• Security
• Performance
• Connectivity
• IOP
• Localization/GPS
• Memory Leak

Wearable Apps Development- An Overview

With the advancement in technology, wearable devices are not only restricted to wristwatches. The Internet Of Things has brought up revolutionary modern-day wearable devices like smartphones. Wearable technology connects devices to others through an internet connection. Most of the devices are designed to work with smartphones and devices that run on wearable technology needs a mobile app to manage data. Let us see details of wearable apps.

What Is Wearable Apps?

Wearable Technology is a category of technology devices that are worn by a user either directly as an accessory or as a part of other materials like clothing. These gadgets further connect to the internet directly or through a smartphone to perform a number of functions by exchanging data between the network and device.

There are specific apps that are designed to work with wearable devices. Accuweather, Parking, Spotify, Bring are some popular wearable apps. Apple and google are two top developers of wear apps. These apps are more complicated than standard mobile apps. 

How Wearable Apps Are Differ From Smartphone Apps?

1. Functionality- 

Hardware of wearable technology is small and less powerful so there are some limitations for functionalities of a single wearable app on a device. 

2. User Interaction-

Generally, wearable apps have little to almost no user interactions. The work automatically collects data and displays output. Very few wearable apps need input from a user. Whereas, mobile apps are mostly developed for user interactions.

3. Device Specificity-

Wearable apps use APIs specific to the device and so the same cannot be used on other devices or platforms. Until now, same wearable apps can’t be used on other devices or even the same device of other makers. However, mobile apps have the flexibility of being able to run on different makes and models of mobile phones and even on tablets.

But the good thing about the development of wearable apps is, it is similar to the development of smartphone apps. Only the expert development company that has experience of developing wearable apps can develop app for particular wearable gadget.

Reasons For Developing Wearable Apps-

Wearable apps offer a different set of features and experience to users. The way they work is also different and they are not as robust as mobile apps. Even their strategy and approach for development is also different from other applications.

1. Portability-

Wearables are portable devices that we can carry everywhere and so the app success completely relies on the user experience. It is a customer-based app and you must not develop it like Smartphone app. For instance, “Smart shoe” app which is a customer-based app in which shoes are connected with app that helps to direct and notify the customer with vibration. 

When the customer walks into the unknown areas without being stuck to the smartphone, the smart shopping wearable app help them in the right way through mild vibration. Also this app can help to discover the daily walking distance, running distance in an app. It also displays the burned calaries of each day, and describe about your fitness. 

Wearable apps are more flexible, trending and convenient to use. Wearable apps provide fitness tracking, security profiling and network monitoring.

2. Size Is The Key Factor-

For wearable apps, size is an important factor. In case of wearable apps you cannot develop app with certain templates, a creative and unique feature is needed for the development of wearable app. This is because the loading of huge apps in the smaller device is complicated and may perform poorly. The app developer might have a worry in the wearable apps development as the Smartwatches are portable in size however need many unique and innovative features for the Play store installation.

3. Improve User Experience-

Providing best user experience to the end user is one of the most important aspect to consider in wearable app development. It is important for both mobile apps and wearable apps but the program is different. One of the main advantages of wearable apps over mobile apps is that there is no need to carry mobile while using wearable apps. Wearable apps still need more improvement as there are challenges while working on wearable apps and its functions.

Challenges In Wearable Apps Development-

• User Interface- Only looks for wearable apps is not important, it should work smoothly on the mobile and device too. Generally wearable devices have smaller screens than tablets, mobile etc so it is a challenging task to design app that is attractive too.
• Battery Issues- If an app is consuming more battery, it won’t stand in the modern market. Finding the perfect balance between great functionality and battery saving features is a challenge to developers.
• Security and privacy- Each wearable technology needs data transfer from one device to another. Whereas there is a security issue of data being stolen. This is a big issue people that prevents them from using wearable gadgets.
• Tethered devices- A wearable application deals with two devices at the same time. And it is the reason why an application might fail. It is very challenging to design an application that isn’t affected by devices much. On account of gadgets that run on Bluetooth, it is important to keep a decent range.
• Functionality- A great app needs not only good user interface but also a customizations based on the user requirements. Developers should focus on ease of use and customer requirements.
• Multi-platform support- The best wearable applications are those that are viable with different platforms, particularly Android and iOS. So the app must be custom-made to run efficiently on all devices. This needs a complete focus on API and various protocols.
• Regular Updates- According to the changing market circumstances, there is always a need to update the app. To stay relevant and on the top of market wearable app development needs to update with new features and fix bugs.

Benefits Of Wearable Apps-

• Health & Fitness-  Fitness wearable apps keep track of our fitness activities. Fitness bands connects with dedicated fitness apps that stores body data like heart rate, pulse rate, burnt calaries, pulse rate etc.  
• Fashion- Many popular fashion brands are developing wearable gadgets and clothing accessories. In the upcoming days, unique fabric clothes will be launched that will improve the blood flow as required. 
• Games- Gaming industry uses AI, VR, IoT and wearable technology to develop gaming gadgets. Various apps are developed to work with gadgets like eye-wears to produce real-life graphics. Gameband+Minecrcaft is a wrist band for gamers.
• Entertainment- Entertainment app has made the application compatible with wearable devices. Various apps allows you to play different media like videos, music and pictures on your watch or other devices like Spotify.

Testing Of Wearable App-

Testing of wearable app is different from mobile apps and software applications. Here are some of the testing parameters for wearable apps- 

• Installation testing
• Functionality testing
• Performance testing
• Usability testing
• Connectivity testing
• Security testing
• Localization testing
• Memory Leak testing
• IOP testing

Top 7 Golang Machine Learning Libraries To Use In 2021

 Go is a popular open-source programming language created by google researchers. It has many attractive features like garbage collector, cross-platform, efficient concurrency and so on. Machine learning helped everyone( including non-CS people too) over the past few years. We know that Go provides faster speeds at accessing requests over the internet, and also it can be used for something practical- like Machine learning. Here we’ve listed out some top machine learning libraries in Golang. Let’s see which are those.

You can know the reasons to use golang at- Why Golang Is Better Than Other Languages?

Golang Machine Learning Libraries-

1. Gorgonia-

This library helps in facilitating machine learning completely in Go language. Main goal of this library is to be a highly performant machine learning and graph computation-based library that can scale across multiple machines. Also, it provides a platform for the exploration of non-standard deep learning and neural network related research. It can perform processes like neo-Hebbian learning, corner-cutting calculations, etc. Some of its features are-

• Gorgonia can perform automatic differentiation, symbolic differentiation, gradient descent optimization and numerical stabilisation.
• Library provides various convenience functions to help create neural networks.
• This library supports CUDA and GPGPU computation.

2. Golearn-

It is a popular library in Go language and known as the ‘batteries included’ machine learning library for Go. Golearn aims to contribute simplicity paired with customizability. It has great features like-

• Data are loaded in as Instances. You can then perform matrix like operations on them, and pass them to estimators.
• This library is like popular Scikit-learn library in Python because it implements the Scikit-learn interface of Fit/Predict.
• Golearn includes helper functions for data such as train splitting, test splitting and cross-validation.

3. Goml-

It is a machine learning library written in Golang that allows developers to include machine learning into their apps. Goml includes many models that lets you to learn in an online, reactive manner by data transfer to streams held on channels. Those models include traditional, batch learning interfaces etc. Library includes extensive documentation, comprehensive tests, and expressive, clean, modular source code. Community contribution is heavily encouraged. All code of Goml is well documented and the source is readable if you’d like to make sense of it all.

4. Evo-

Know more at- https://solaceinfotech.com/blog/top-7-golang-machine-learning-libraries-to-use-in-2021/

Key Points That You Should Know About Offline Apps

 

These days, most of the users expect apps to work even when they’re offline. Else, bad network connection translates into poor user experience. Near about 21% users uninstalls an app just after one use. In app messaging, Push notifications and offline mode helps to retain users. Offline mode is necessary for delivery apps having GPS navigation, banking apps and apps for urgent medical assistance. Users like offline apps because it can work constantly without delays, can load immediately, and consume less battery. 

Types Of Offline Apps-

Based on the nature and function of app, offline apps are divided into 3 categories-

• One user can edit other user’s data- making edits to an offline Google doc type app.
• Data can be edited and synched offline, for example, note taking app.
• Data stored offline- without any editing functionality, eg., On-demand Uber – X app

Selecting An Architecture To Create Offline App-

While selecting the architecture for your offline, consider the following points- 

• Why is it important to know how and where to cache the data?
• What is the reliability of caching?
• How to handle concurrency?
• Which safeguards are in place to handle data conflicts?
• How is this architecture going to handle connectivity changes?

Types Of Offline- First App Architecture-

The data storage, sync and access may change according to the device, server and architecture. Some of the best development approaches are as follows-

• Caching- Data caching on local browser/server is simplest approach to help users with data reading in offline mode. This offers access to data on a device, renders the UI, providing a predictable user experience within a short time.
• Manual Replication- With this users can edit the data in offline mode by marking changes in objects. All changed objects are sent by push and pull operation once the network connectivity recovers.
• Real Time Data Sync By Platform– In this case data synchronization is automatic. Changes are send between device and server in minor binary format. Only some particular operations with data are synchronized, capturing the information intended by user, permitting the system to automatically resolve any conflicts, This focuses on performance because there is no manual intervention.

Selection Of The App Types Based on Offline Mobile App Architecture-

One should look for quick data retrieval upon multiple requests, complete offline capabilities and no reliance on the UI while selecting the architecture of offline-first application. On-demand type offline architecture are good for e-commerce apps, news apps, real time apps, map apps etc. Offline architectures are suitable for notes taking apps, weather apps, email apps, finance type apps, messaging apps.

How To Decide Offline Features For Your App?

Each mobile app is designed and developed based on the budget, business requirements, scope of application, availability of technologies and skills of developers on board. By considering all these factors, mobile apps are designed and developed. A way to handle errors might be different. Users can perform some of the actions while the app si in offline mode and then able to synchronize it as the app regains network connectivity. With some mobile apps, there are client-side and server side storage and app can manage data flow between server and client. Points that can help while developing offline mobile app- 

• Decide business needs, assess workflow, and translate it into app features.
• Give these features a priority as once they become significant for your business, they become urgent.
• Figure out what you need to achieve through your application and share this data with your developers. Help them to understand business objects and recommend precise technologies for custom solutions.

What To Consider While Selecting Technologies For Offline Mode?

Selection of technology will have a big impact on app’s offline mode performance.  So, consider the following points while selecting technology-

1.  Data synch-

Frequent reconnecting drains a mobile’s battery. But if app doesn’t synch frequently, users might miss necessary updates. So to balance it, work with development team. You have to check how frequently users can use high-speed internet. If your users use app for work, then decide which slots are good for downloading data in their work schedules. If data connections is good, those slots can be shorter.

2. Data Synchronization-

You should prioritize data as per business requirements. Some of the data needs should be updated once a year, while others need to be updated a few time a day. Decide various synchronization cycles for various data according to the business needs. Data packages that are smaller need high-frequency updates. If your app needs continuous data synchronization, you can sync data at a specific time. 

3. Sensitive Data Management-

Users sensitive data cannot be erased for security reasons. Downloaded data such as logos and blog posts are stored in a cache folder on the user device, so it doesn’t need to be downloaded each time the user uses that content. Cached info can be viewed by using back button of browser or checking the browser’s cache and this can show sensitive data such as usernames, credit card details etc. So, you must ensure that the sensitive data is not cached. 

4. Managing Shared Data Changes-

Sometimes, users are not online, data changes cannot be accessible to others. In this way, numerous clients may work on similar information without checking how others have changed it. If you can’t ignore this case, manage and decide rules to handle those exceptions.

5. Synch Ways-

To select the appropriate technologies for your offline mode, check whether data transfer should be synchronous or asynchronous, regardless of whether data will be synced manually or automatically, whether the application will ask the server actively for updates or the server will send new data itself to the application.

Implementing Offline Mode For Web And Mobile-

There are some differences while applying offline mode for mobile and web. Let us see how to store and synchronize data for mobile apps and web apps. Web applications store data in browser whereas mobile apps store them locally. ServiceWorkers and IndexedDB are tools to store data in the browser. 

1. IndexedDB-

This tool offers a better API than local storage API to store data in a browser. You can use IndexedDB or similar alternative for offline data storage. App shouldn’t make any HTTP calls so as not to fail in offline cases. In low-storage cases, browsers may clear IndexedDB. One can use persistent storage API to solve this problem.

2. ServiceWorkers-

ServiceWorkers operate as client-side proxies and can intercept client requests. It has a well-determined lifecycle. Google’s libraries sw-precache and sw-toolbox are used for caching static and dynamic content. 

Data Sync For Web And Mobile Apps-

Offline Sync For A Mobile App-

By the use of offline app, users can take actions offline and then synchronize changes with the central repository. For this, app should manage data flow between server and client. Most of the time, offline mode is used when users can edit data on the server side and on the mobile side. Despite the fact that it may be fascinating to create offline applications supporting two-way sync, it’s the most complicated method. If supports two-way sync, synchronization logic has to check that data is updated on the mobile and server side too. Data storage methods to make an app work offline differ for iOS and android.

Android-

SharedPreferences APIs of android platform can be used to save a small amount of primitive data in key-value pairs. SharedPreferences object is a reference to a file with key-value pairs. While using this, you have a key and value, the value can be boolean, float, int, long or string. Android stores SharedPreferences files as XML files in a private directory. One of the Method of receiving SharedPreferences object is used if an app contains a single preferences file and the other is used if an app contains more than one preferences file or if you want to give a custom name for the  SharedPreferences instance.

iOS- 

While implementing offline mode for ios app, you can make use of a NSUserDefaults class to save and update users’ preferences. This class delivers a programmable interface to customize its behavior based on the user’s preferences. You can allow users to save profile pictures offline or add a function which automatically saves documents. App records preferences in the user defaults system, and so helps you to avoid opening the user defaults database when you want a default value. When app is closed by user, they can still use the saved information the next time they enter the app.

Offline Sync For A Web App-

While storing offline data in a browser, you need to upload it to the server when the network is available. To ensure data syncs properly-

• Analyze the smallest amount of data to store locally.
• Select as less data as possible to transfer from server to device
• Configure conflict resolution
• Determine and prioritize data sets for syncing
• Balance synch frequency and battery drain
• Explain retry mechanism
• Send a sync status notification to users