What is JavaScript?

JavaScriptJavaScript is the language for building the interactivity of web pages. Using this language, you can create web applications included in HTML-code. It can be, for example, a questionnaire or registration form to be filled in by users. JavaScript is often mixed up with Java programming language, however, they have little in common. JavaScript’s meaning relates to is a special language that exists independently. Using JavaScript, you can change your page, modify the style of elements, and add or delete tags. Moreover, you can always be aware of users’ activity on this page, whether they are scrolling the page, pressing any button, clicking the mouse, zooming screen, etc. It makes it possible to get access to any HTML-code elements and make many manipulations with this element. You can download data without page refreshing, display messages, set cookies, and perform other actions.

Some Popular JavaScript

Node.js

Node.js, one of the best cross-platform app development frameworks, also lands into the list of JS frameworks that will enjoy the limelight in the market in 2020. The framework is open-source JavaScript runtime environment that avails a myriad of benefits to app developers including ease of learning, higher scalability, full-stack software development options, higher performance with the help of Google V8 engine, huge community, etc. Something because of which this server development environment is a part of the tech stack of brand evangelists like Groupon, LinkedIn, Netflix, IBM, SAP, Yahoo, Microsoft, Walmart, and GoDaddy.

Angular.js

The foremost JavaScript framework that is ruling the marketplace and will continue to remain on top in 2020 is Angular. This full-features framework is a part of famous LAMP and MEAN stacks, and is considered by high-end companies because of advantages like a full set of tools, elegant programming style, large environment, and high-quality code generation. The framework is the first-choice of app development companies when it comes to building Single page applications (SPAs).

React.js

Developed and maintained by Facebook, React (also called React.js) is yet another best JavaScript framework to consider for ruling the development world. The library is basically a user interface design library but is a good fit for building responsive single-page applications and cross-platform apps too. It comes loaded with various features such as small file size, flexibility, compatibility with multiple libraries, and simplified maintenance process. What’s more, it is highly recommended by prominent brands like Netflix, Whatsapp, and NY Times.

TypeScript

TypeScript is Microsoft’s entry in the race to a better JavaScript. Unlike Dart, TypeScript is not an entirely new language, but a superset of JavaScript. Valid JavaScript can be compiled by the TypeScript compiler, but TypeScript adds several new features that improve on and modernize JavaScript’s limitations, the most important of which is an optional type system. Many JavaScript frustrations are caused by its lack of static typing, limiting the checks that the compiler can do before runtime. TypeScript, as the name suggests, implements a type notation that developers can use to bring type safety to web application programming. Like Dart, TypeScript supports type inference. It’s worth mentioning that TypeScript is more popular than its Google competitor. The Angular framework is developed with TypeScript, even though it’s a Google project. TypeScript can be used with React and Vue too.

Dart

This language was created by Kasper Lund and Lars Bak who also created the V8 JavaScript engine contributing to Google Chrome is the leading web browser. This class-based, single inheritance, object-oriented language with C-style syntax is precompiled using the dart2.js compiler to become JavaScript. What is interesting about Dart is it can run in its own VM with several unusual properties including a unified internal instruction set to precompile Dart code before execution. A huge plus about Dart is that it has the goodness of libraries like JQuery right into the language. They got rid of names like getElementByTagName and replaced it with a query that takes J-Query-like parameters to find what you need. They also standardized the internal data structures used to describe the DOM, eliminating the need to remember method calls like has ChildNodes and firstChild.

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