What is ES6 JavaScript?

A beginner’s guide to ES6 JavaScript. Learn what is ES6 JavaScript and how it can make your life as a developer easier.

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ES6 JavaScript is a major upgrade to the JavaScript programming language. The new features include:

– Classes
– Modules
– Arrow functions
– Promises
– Generator functions
– let and const keywords

ES6 JavaScript is not yet supported by all browsers, so you may need to use a transpiler (such as Babel) to convert your code to ES5 before running it in older browsers.

What is ES6 JavaScript?

ES6 JavaScript is the latest version of JavaScript. It includes new features such as classes, modules, arrow functions, and more. It’s important to learn the new features of ES6 JavaScript so that you can stay up to date with the latest advancements in the language. In this article, we’ll cover all of the new features of ES6 JavaScript.

New Features

ES6, also known as ECMAScript2015, is the latest version of JavaScript. This new standard was published in June 2015, and it brings several new features to the language.

The most notable new feature is classes. In ES6, you can define classes just like you would in any other object-oriented programming language. This makes it easier to write structured code and helps reduce the amount of boilerplate code you have to write.

Other important features include modules (which help with code organization), template strings (which make it easier to interpolate values into strings), and destructuring (which makes it easier to extract data from arrays and objects).

ES6 also includes a variety of smaller improvements, such as default function parameters, rest parameters, spread operator, and more.

Syntax Changes

ES6 is the next version of JavaScript, and it includes a lot of new syntax changes. Some of these changes are small, like new methods on existing objects, and some are much larger, like completely new features.

Improved Performance

ES6, also known as ECMAScript2015, is a major update to JavaScript that introduced several new features and syntax improvements. The majority of these features are aimed at making code more readable and maintainable, with the goal of improving performance.

One of the most important additions in ES6 is the let keyword, which allows developers to declare variables with reduced scope. This can help improve performance by limiting the number of global variables that are created, and also helps to prevent collisions between variable names.

Other performance-related changes include improved handling of promises (a feature that allows asynchronous code to behave like synchronous code), and support for Tail Call Optimization (a technique for making recursive functions more efficient).

Overall, ES6 provides significant improvements over previous versions of JavaScript, both in terms of syntax and performance.


ES6 is the next version of JavaScript that is already supported by many modern browsers. It has been standardized by ECMAScript International. ES6 adds a lot of new syntax that makes it easier to write complex applications, and it also standardizes some features that were previously implemented in a variety of ways by different browser vendors.

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