JavaScript Frameworks for Frontend Development-Guide

JavaScript Tutorial - An Ultimate Guide for Beginners

Backend and Frontend – The Two Foundational Components of Native Mobile Apps and Web Apps. While the former fuels the app, the latter defines how the app would act when in users’ territory aka on users’ devices.

While we have already covered the factors that power the Backend development of robust apps in article before, in this article we would be looking into the Frontend Development, especially JavaScript Frameworks, at great lengths.

There was a time when a website or a mobile app was made of simple static text site with little scope of interaction with other websites and apps. And the only scope of innovativeness came from minimal animation that hovered on the screen. That was the time of HTML and CSS.

But today, ever since the advent of JavaScript Frameworks, the scenario has changed. Today’s web apps play videos, interact with other apps, fill out forms, and do everything that makes it enough for users to remain invested without refreshing the page.

Seeing the advancements that the Top JavaScript frameworks have introduced the Frontend Development world with, a number of other languages/technologies have started flourishing.

The Options Businesses Have When it comes to Frontend Development of Web Based and Native Apps

When it comes to Frontend Development of Mobile Apps – Native, Web Apps, and the new App type that Google wants you to know about – Progressive Web Apps, there are a number of different technology options a business can choose from.

I know the article is to talk primarily on JavaScript Frameworks, but it is only fair to touch bases upon the other options that you have when it comes to Frontend Development of Web Apps.

Here are the Top JavaScript Framework Alternatives that are worth paying attention to –

The Most Popular JavaScript Front End Development: How to Choose

JavaScript or no JavaScript, the Frontend Development Industry has a lot to look forward too.

Frontend Development Trends 2019

Advanced Chatbots

Most Advanced Chatbot Apps Powered By Artificial Intellect | by Dmytro Brovkin | Chatbots Life

The conversation based User Interface on Mobile and Websites is the number one trend of Frontend development of the present time. It is estimated that by 2020 85% of the customer interaction with a business will involve zero human involvement.

Motion UI

How Motion UI/UX Helps to Increase Attention Span of Users | by Ajay Kapoor | UX Planet

While material design would still reign superiority when we talk about interface design, the  incorporation of motion UI would breathe life into websites and mobile apps.

Prepared to catch user’s attention and to deliver information, the motion UI elements like  hovers, animations, modular scrolling, and page header transition can become the differentiating factor between a seamless and passable user experience.

Evolution of JavaScript

evolution-of-javascript - Surveying Group

Javascript is unquestionably the most famous languages used by the developers, which gives it a high position among the frontend developers, full stack developers, and the backend developers.

With the presence of scalable Javascript frameworks like Node.js and React.js, and the powerful package managers like NPM client and Yarn, Javascript Frameworks continue to be the primary technologies when we talk of frontend development in 2019.

Did you see how the ‘evolution of JavaScript’ has found its place in the list of Frontend Development trends?

Doesn’t it make you wonder…

Why JavaScript?

As we saw a few minutes back, there are in fact a number of alternatives that businesses have when it comes to technology to base their Frontend Development on. However, in spite of that, it is JavaScript that continues to witness mass adoption and there are valid reasons supporting the kind of growth that JavaScript Frameworks are getting. Let us look into a few of them

Why are Businesses, like us, Opting for JavaScript?

It is on Every Platform

Android vs iOS vs Windows – SK Info Techies

JavaScript Framework is present and used across a range of different platforms, in fact it is on every platform you can possibly imagine – Browser, Mobile, IoT, Desktop Apps, and a lot other.

Acts as the Best Foundational Language

Once you learn JavaScript, learning other languages becomes a piece of cake.

Can Handle Complexity

LinkedIn integration — amoCRM

The majority of world’s most popular websites like Paypal, Netflix, and LinkedIn, amongst others, work on one or other form of JavaScript Frameworks.

Faster Debugging = Faster Deployment

How To Deploy Faster With Fewer Errors Using DevOps Automation

Unlike other languages, JavaScript comes with the facility of feedback loop. Because it is built on browser, one can run the code and get instant results.

Reasons such as these and many others are enough for establishing JavaScript as a popular language – The one that is can be used in many different situations and many different platforms, with ease.

Because of the popularity and ease that comes tagged with JavaScript language, a number of frameworks have now found a place under the JavaScript umbrella with many other being developed to become a part of the family.

All in all, currently there are over 50 different JavaScript frameworks that can be used for the Frontend development of Mobile apps and when you add the web specific frameworks, the number grows by manifold.

With over 50s of JavaScript Frameworks used in the market, it is in fact difficult to come to a conclusion as to which Frontend Development frameworks would come out to be the best.

While different businesses would have different set of preferences when it comes to choosing a Frontend JavaScript Framework, at Anteelo, we focus our efforts on these Four – Angular framework. React. Vue. Node.

– The Fantastic Four –

Angular.js. React. Vue. Node

React vs. Angular vs. Vue: Which Should You Choose? - YouTube

Node.js - Wikipedia

The Reasons Why we Choose Angular.js, React, Node, and Vue for Frontend Development

Popularity – All the four JavaScript Frameworks are popular in the web and mobile app development industry and because of this popularity, they have the back of a strong developers’ community, which makes issue redressal a fast process.

Flexibility – Straight from Angular Framework and React Framework to Vue and Node, all these frameworks are used for the development of mid to high complexity level apps.

Ease of Adaptability by Developers – As compared to the other frameworks, these come with a comparatively lower learning curve, which makes the mobile app development process much faster.

Experience – We have developed over 100s of Mobile based apps using these top JavaScript Frameworks, giving us an in-depth idea of how they work.

Let’s take a look into them at much length –

Vue.js

Reverting Vue.js Form Changes - Client Resources, Inc.

If React Framework and Angular.js ever had a baby, it would look like Vue.js (not logo wise but features wise). The brainchild of ex Google employee Evan You, Vue.js has somehow managed to become the competitor of all three prime frameworks: Angular Framework, React.js Framework, and Ember Framework when it comes to Frontend Development – becoming the op JavaScript Framework in the process. Even without the support of any hot-shot tech name, the brand has been able to become really popular among the developer community.

Vue.js was conceived with the sole aim to make the interface development organized and simpler. And it does it so perfectly that it is now deemed ideal for the development of lightweight apps.

Acting as a legitimate child of React and Angular, the JavaScript framework shows features that are the best of both – While on one hand, it offers two-sided data binding facility of Angular Framework, on the other, it provides server-side rendering of React Framework.But then, like all things seemingly ideal, Vue.js also comes with its share of pros and cons.

Here they are

Pros –

  1. Rapid Adoption. In only a few years since its launch, a number of businesses have started making Vue a part of their tech stack.
  2. Low Learnability Scale. It is easier to get acquainted with the framework as compared to Angular JavaScript Framework.
  3. Rendering Support is Declarative
  4. Easier Integration with HTML Elements

Cons –

  1. Since it is a new project, there is still a lack of resources
  2. Relatively smaller community support, especially when compared with Angular.js and React Framework

Angular Framework

Angular (web framework) - Wikipedia

The one thing which all us developers agree with is that Angular JavaScript is the one framework that has the capability to powerful web applications Frontend Development.

Angular.js is a full featured JavaScript framework that comes with a series of business benefits such as quick production of code, convenient testing of app part, and the two-way data binding, which helps in reflecting the changes that happen in the backend immediately on the User Interface development.

Angular Framework keeps coming out with updates on a regular basis like Angular.js 6 comes with an improvement in the rendering engine for smaller and faster applications.

Even when hundreds of businesses are adopting Angular Framework, and it has set a dominating position in the Angular vs React.js framework comparison globally, there are some evidential pros and cons that come associated with this JavaScript Framework too –

Pros

  1. Material Design and PWA Support
  2. Stable long term support because of Google backing
  3. Two Way Data Binding
  4. Mobile focused approach to Web Development

Cons

  1. Apps developed in Angular Framework are notoriously famous for drawing device’s battery
  2. Needs more Optimization to tackle the present low performance issue
  3. Comes with high learnability scale

React Framework

We should know some core words of React.Js library. | by Mohammad Shaif | Medium

Backed by Facebook and Instagram, React Framework has become the most used/ top JavaScript Framework of the present time with over 1,000 contributions present on GitHub using it for Frontend development. Because of the use of a virtual DOM, the React framework provides a better performance boost to apps as compared to Angular.js.

Used by over 38% of the developers, worldwide, React.js. compared to other JavaScript Frameworks, has also grown to become the first choice of a number of prime businesses like Netflix, Paypal, Flipboard, and BBC, amongst various others.

Now, there are indeed a number of reasons that businesses like ours and WhatsApp swoon over React Framework usage in Frontend Development, but Flexibility is what tops them all. And the JavaScript framework stands true to the hype it has been able to create around its upper hand in developing Mobile Apps with advanced user interface.

Nonetheless, the framework, like the others, do not come sans advantages and disadvantages. Here are its pros and cons –

Pros

  1. Good set of Documentation and Online Resources
  2. Possibility of Server Side Rendering
  3. Easy Component Model
  4. Fast, Efficient, Flexible, and Small Sized

Cons

  1. It is essential to have Build Tools
  2. The chances of framework being incompatible with the other libraries and code that modifies DOM are very high
  3. The learning curve can be a little higher

Node.js

Node.js - Wikipedia

Node.js has over time become the top server side JavaScript Frameworks.

The idea behind Node.js is using event driven I/O to help remain efficient and lightweight at time of development of data intensive real time apps, which operate across a series of distributed devices.

The top server side javascript framework helps in building fast and scalable network applications, as it is capable of managing huge number of connections through high throughput – which ultimately brings out greater scalability.If you are looking for a fully featured JavaScript Framework environment with the presence of all the tools, Node.js would be your right option. In fact the popularity that Node.js is getting is making it one of the top JavaScript frameworks. Bringing it steps ahead in comparison to PHP and Golang.

I am sure by now you must have become acquainted with the drill. So, keeping up with the trend, here we go –

Pros

  1. The non-blocking IO ecosystem lets developers process multiple requests simultaneously
  2. Node.js developers community is extremely active, meaning access to ready solutions and codes in GitHub
  3. Made JavaScript full stack. Before Node.js, the platform was solely used for the development of client side.
  4. The one of the most popular server side JavaScript frameworks, Node is opposite of restriction. It lets you build every element of the app from the scratch.

Cons

  1. There have been instances of Node API instability
  2. It still does not support multi-threaded programming, which means it is not ideal when performing long running calculations, which ultimately leads to a decline in app performance.

So here were the four Frontend JavaScript Frameworks that we swear upon everytime a project comes along for Web App Development.

Other than these four, there are 11 Frontend JavaScript Framework that we can see competing for a place in the list to replace them. While they will take some years to come at a position where Angular.js and React js Framework and Node, Vue have placed themselves, they are 100% in preparation of coming neck to neck with the Fantastic Four in 2019.

In short, the next 11 JavaScript Frameworks have now become too big to ignore. And it is time that we give them their fair share of limelight, so here we go –

– The Sidekicks –

Ember.js

It's easy to build an app with Ember.JS - Open Source For You

Used in designing of a number of complex websites like Kickstarter, Heroku, and LinkedIn, Ember.js comes with the support of a huge online community, continuous rollout of updates and lastly, a wide appliance of the best practices of JavaScript.Ember.js is ideal for development of complex web apps, and the string-based templating system that it comes with contributes to a much faster boot time.

The Frontend JavaScript Framework is also concentrated on scalability, so that the developers can easily work on both – mobile and web apps.

Next.js

Next.js - Wikipedia

Next.js is not your common JavaScript framework. The framework was launched by React js team as a tool for the server-side rendering. Developers working with the mix of Next and React.js can help simplify the frontend development process.The popular server side javascript framework comes with a set of remarkable features like page-based client-side routing and automatic code splitting. Above all, Next.js comes with full CSS support, known as styled-jsx, to help make the styling of user interface development a lot easier.

Meteor.js

Advantages of Meteor JS For Web/Mobile Development

The full-stack client and server side JavaScript framework allows swift Frontend development of the end-to-end web and mobile applications in JavaScript. Because of its modular structure, the libraries and packages are used at pace. In context of performance, every one of the changes that happen in database are then instantly transmitted to UI. Currently, the framework is used for real time application development of companies like Mazda, Honeywell, and IKEA, amongst others.

Mithril.js

Getting started with mithril.js. First of all what is mithril.js… | by Odohi David | Spankie's Blog | Medium

Mithril.js has a series of similar features as React.js. Mithril offers you hierarchical MVC elements and various safe-by-default templates that come with intelligent DOM differences that goes into checking of high performance rendering. The JavaScript Framework also comes with two very impressive features for Frontend Development – URL Routing and Customizable Data Binding.

Polymer.js

Community - webcomponents.org

The lightweight framework is designed to enable you to take complete advantage of the Web Components. Polymer has the web components which are a part of HTML standards that promise longer existence as compared to ReactJS.Polymer.js works best when you need to combine your app with other frameworks & platforms and when you need to work with JavaScript standards.

Aurelia.js

The Durandal Inc. product, is being advertised as a next generation UI framework. It is deemed to be one of the developer friendly and advanced front end JavaScript framework of the present time.The JavaScript framework APIs are designed for consumption not from just today’s needs but also from future web programming languages. It supports ES2015, ES5, ES206 and Typescript as well, which gives developers high flexibility.Aurelia also comes with an extensible HTML compiler, which lets the developers create customized HTML elements and take take control of template generation with the support of dynamic loading, data binding, and batched rendering.

jQuery

Is jQuery for You?. What it is, who should use it, the pros… | by Rachel Lum | Medium

The popular android app development framework, although old, but is still holding a prevalent position, and the 300k downloads that it sees everyday is a sign of it.

Even though the frequency with which updates were rolled out have been lowered immensely, a new version, v4.0 is planned with a series of changes such as –

  • Rewrite of the speed framework
  • Rewrite using the next gen JavaScript
  • All new event module design

Backbone.js

Backbone.js

The framework is one of the most famous one among the JavaScript Framework developers’ community. And the reason behind the popularity that the framework has been able to gather for itself are pretty straight forward – The framework comes with usability modules that are very easy to understand  and have an extremely simple learning curve. Using Backbone, you can make single page apps with the help of the traditional web libraries. They are developed on the idea that the server side functionalities should always flow via APIs as it minimizes the number of codes that should be composed for achieving the complex functionalities of sophisticated web app frameworks.

Socket

The client and server side javascript framework has been getting in a lot of attention from the frontend development community, making it one of the most popular JavaScript frameworks. Socket allows you to take advantage of a real time communication among the server and client. It is divided in two parts – client library running from browser and the server library that is built on Node.js.

Socket allows you to implement real time binary streaming, interactive set of document collaboration, instant message platform, and the real time stats of project and apps.

Titanium

The framework allows mobile app developers to create native apps with the help of web technologies like JavaScript, HTML, and CSS. It is one of the best JavaScript Frameworks  today with their apps being on over 460,587,474 devices and with more than 91609 developers working on it.

Knockout

Knockout.js Example | Knockout.js Development

The last JavaScript framework that we believe will hold its position of being a popular choice of framework is Knockout.js. The framework helps developers build rich and responsive display and an editor UI with clean underlying data model. Apps that have section of UI which update dynamically can benefit greatly from Knockout framework. There are three features that come associated with Knockout, which contribute to framework’s popularity in the frontend development domain –

Dependency Tracking – The JavaScript framework updates the right sections of the UI as and when the data model changes.

Declarative Bindings – The feature lets you offer complex and dynamic User Interface Development with the help of arbitrarily placed binding contexts.

Trivially Extensible – It lets you use custom behaviours as part of new bindings for convenient reuse.

So here were the 4 JavaScript frameworks that we rely on and the other 11 JavaScript frameworks that will be making a prominent appearance in 2019 along with the Fantastic Four.

Now coming to which one of the most popular JavaScript frameworks you should go with, when taking a decision, compare the architecture, performance, documentation, learning curves, community support, and organization.

These 15 Famous Apps Migrated from Java to Kotlin-Reasons

Java: How do I get along with Kotlin ? | by Ashwin S | AndroidPub | Medium

Google in its I/O 2017 Developer Conference announced that it will now officially base its Android App Development process on Kotlin – the language developed by the JetBrains team of programmers based in Russia.

The features that Kotlin comes powered with –  Interoperability with Java, Conciseness, and Android Studio support – were enough for Google to validate developing android apps with Kotlin, something that the tech giant continued to highlight in I/O 2018 by scheduling sessions on the Android new programming language.

Just days after the announcement of Kotlin becoming the official language of Android at the I/O 2017 developer conference, the programming language found itself in the list of top programming languages that will define 2018.

Between 2017 and mid of 2018 (the present time) the language has seen an exponential rise in demand from both developers and businesses. The realm report that surveys mobile app developers globally also found that 20% of the Android apps that were built on Java before the Google I/O 2017 conference, were then migrated on Kotlin. A movement that has brought in a surge in demand for Kotlin app development agencies.

In the October of 2017, we covered Kotlin in depth in one of our blogs, head on there to read the article where we dissected Kotlin and highlighted ways it is better than most of the other programming languages.

Taking what was started in 2017 forward, the Android industry in the present day is staring at the rise of the number of Kotlin based apps, with the portfolio consisting of a number of hot-shot brand names.

In this article, we will be looking at 15 companies that were using Java earlier but now use Kotlin, and this way, give you an idea of why it’s time for you to follow the lead to.

But before that, here are the business benefits that you can enjoy by focusing on android development with Kotlin.

What are the Business Benefits of Choosing Kotlin – The Official Programming Language for Android Apps

6 benefits of Kotlin for building server-side applications - DEV Community

1. Improved Code Maintainability Meaning Faster Development Time

When we compare Kotlin vs Java, we can find Kotlin to be more concise meaning it can solve more problems with fewer lines of code. It means that the engineers can read and change the code much efficiently.

There are a number of features that come associated with Kotlin, which make the language more concise – Smart Casts, Data Classes, Properties, and Type Interface.

2. Lower Instances of Application Crashes

Open source Android Apps written in Kotlin offer better security over those coded in Java. This is so because Kotlin averts the common programming mistakes in design, which results in lesser application crashes and system failures. Also, since Kotlin works on a fail-fast system, any issue that can lead to failure are reported instantly.

The fail-fast compiler that Kotlin comes with searches for bugs and prevent them from coming again.

3. Shrinked Codebase Leads to Easy App Maintainability

Android apps made with Kotlin calls for a lot less number of code lines as compared to Java, which ultimately not just saves the app development time but also the app maintenance time and efforts.

Apart from these Business Benefits, there are a number of advantages that come associated with Android Kotlin.

Seeing these myriads of benefits that Android apps made by Kotlin bring with themselves, the Android mobile app development industry has now eventually started moving to the adoption of Kotlin Programming Language. A move that has been bringing about a transition from Java to Kotlin.

Kotlin Developers that have made the switch from Java to Kotlin have realized a series of benefits that have also become the reasons why it is time for the android mobile application development industry to start making the switch.

Why is the Android App Development Industry Moving from Java to Android’s New Programming Language?

This is Why –

1. Mass Adoption

Even though Kotlin – the new language for Android Apps is a new entrant in the industry, there are a number of companies – established and new alike – that have migrated from Java to Kotlin to take advantage of the benefits that the language comes with.

*More on That Later.

2. Concise

Android mobile apps developed in Kotlin language are very concise. The resulting code of a Kotlin programming language reduces the total number of boilerplate codes, which enhances productivity to a great extent. Also, there is a lot less room of error, while the resulting code is a lot safer and reliable.

3. Better User Experience

Kotlin programming language makes your app a lot more stable by removing the bugs and reducing the instances of app crashes. And when your app is launched with these issue missing, the user experience only enhances.

4. Designed to Fail-Fast

This time around, Google has brought changes in its new programming language for Android Apps. They have made Kotlin fail-fast.

A fail-fast system immediately reports any issue in coding that is most likely going to lead to failure. When a problem emerges, the fail-fast system fails immediately, making it impossible for the Kotlin developers to move ahead with the mobile app development process.

5. Kotlin for Android is a Developer’s Retreat

Kotlin programming language, in its latest 1.4 release, has made the Android App Development process a breeze for the developers. The language now offers a new flexible Project Wizard for easy creation and configuration of varied types of projects, a new compiler mode known as explicit API mode that aids creating well-defined and consistent APIs, and much more.

All these benefits cumulatively have resulted in making Kotlin the answer to ‘What programming language are Android Apps Written In’.

The fact that Google has introduced free courses to learn Kotlin, will do wonders for the adoption rate. It is so much so that the probability of you using some apps built with Kotlin is extremely high.

Here are the 14 Android Apps That are Made Using Kotlin for Android 

1. Pinterest

Pinterest

The popular photo-sharing app, Pinterest is one of the biggest names that have used Kotlin for Android App Development. The brand officially moved from Java to Kotlin and showcased the benefits of the move at Droidcon NYC 2016.

2. Postmates

News Analysis: Uber Eats Postmates for $2.65B | Constellation Research Inc.

The on-demand food delivery app also recently shifted to Kotlin for its Android version of the mobile app. The reason for this switch from Java to Kotlin can be attributed to the fact that the language is famous for supporting high scalability and is known to be engineered around a fail-fast mechanism.

3. Evernote

Best Note Taking App - Organize Your Notes with Evernote

The note-taking and task organization app, Evernote has also joined the league of apps built with Java that has turned towards Kotlin.

4. Corda

Corda Partner Program. By Ricardo Correia, Head of Partner… | by The R3 Team | R3 Publication | Medium

Corda, the open source blockchain project that helps Blockchain app developers create interoperable blockchain networks is also based entirely on Kotlin.

5. Coursera

Coursera's Mission, Vision, and Commitment to Our Community | Coursera

The world-renowned online courses app, Coursera is also partially based on Kotlin. The app has millions of active users who use the platform to take courses on a range of different topics.

6. Uber

Earn Money by Driving or Get a Ride Now | Uber India

The global leader in the on-demand commutation market, Uber has also invested in Kotlin app development for Internal Tooling processes such as annotation processors and Gradle plugins.

7. Spring by Pivotal

Download Free png Spring Framework Logo - Spring Boot, HD Png Download - 1280x329 ... - DLPNG.com

The Spring Framework offers a comprehensive configuration and programming model for the development of modern-day Java-based enterprise apps – on every sort of deployment platform. The framework uses Kotlin to provide more concise APIs

8. Atlassian | Trello

Sync Jira with Trello | Atlassian Marketplace

While Trello is not planning to do a full code conversion of the old codebase, the new code that they are using is made using Kotlin. Since there is great interoperability between Java and Kotlin, the brand is able to work with both.

9. Basecamp 3

New in Basecamp 3

Basecamp developers have admitted witnessing a huge difference in code quality and speed ever since they made the switch from Java to Kotlin.

10. Twidere for Twitter

Twidere for Twitter/Mastodon - Apps on Google Play

Twidere is a full feature open source Twitter client app that customizes the theme, manages the unlimited accounts, and filters unwanted tweets. Developed in Kotlin, the app has been able to bag 100,000+ install rate because of its smooth performance.

11. Shadowsocks

Shadowsocks - Wikipedia

The secure cross-platform socks proxy helps user surf the internet securely and privately. The app with 1,000,000+ downloads on the Play Store also joined the list of apps made with Kotlin.

12. Simple Calendar

The ad-free fully open source calendar app is also amongst the Android apps made in Kotlin.

13. Kickstarter

Kickstarter

The app helps musicians, artists, designers, filmmakers, and other creatives find all the resources and the support that they would need to convert their ideas into a reality. With thousands of active users, the app is powered by Kotlin.

14. Square

Square Point of Sale - POS - Apps on Google Play

Ever since Kotlin was approved by Square for their Android Applications, the payment platform has become the evangelists of Kotlin for Android.

15. Gradle

Gradle - Wikipedia

Gradle is the custom build tool that is used for developing the android packages (apk files) by providing the custom build logic and managing dependencies. And recently, Gradle introduced Kotlin as the language for writing the build scripts in. Since Kotlin gives support for both IDEA and Eclipse, Android’s new programming language gives the Gradle users full IDE support for refactoring to auto completion and everything in between.

Get your app’s name added in the list, get in touch with our team of Android Kotlin experts today.

Now that we have looked at the benefits that come attached with developing apps using Kotlin and how their a number of hot-shot apps that are benefitting from this association, we have come to the end of the article where we will talk about the pointers that you should look out for BEFORE you plan to join the league of those famous apps by migrating to Kotlin.

What Do You Need to Know Before Migrating Your Java App to Kotlin?

A. Is your team ready to make the switch?

Shifting the development method from one programming language to another comes with a learnability curve. So, before you make the switch, ensure that your hired development team is adept and experienced in building Kotlin apps.

B. Is your app architecture made of loosely coupled components?

When you make a change in the programming language, it can result in deletion, creation, and merging of some artifacts and classes that make your mobile app architecture a mess. And the more loosely coupled your app components, the more difficult it would be to make changes and then test them.

Once you have ensured that both the pointers are in place, you no more have a reason to not turn your Java-based application into one of the finest Kotlin apps, like the app industry’s top leaders did.

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