ES6 Tutorial Last Updated : 24 Jul, 2025 Comments Improve Suggest changes 1 Likes Like Report ECMAScript 2015, also known as ES6, represents a significant update to the JavaScript language, introducing numerous features that enable more powerful and complex applications. This update provides developers with new syntax and functionalities that streamline the coding process and enhance JavaScript's capabilities. While ECMAScript and JavaScript are different, they are closely related, with JavaScript being an implementation of the ECMAScript standard. ECMAScript and Javascript are both different. Basics1.1 Introduction1.2 Environment Setup1.3 Top features and syntax1.4 Variables1.5 Explain Constants in ES61.6 Void Keyword1.7 Decision Making1.8 Dialog Boxes1.9 Functions1.10 handler method1.11 Events1.12 Trampoline FunctionObjects2.1 Boolean2.2 String2.3 Operators2.4 Modules2.5 Math2.6 Date2.7 Merge ObjectsNew Features in ES63.1 Arrow Function3.2 Spread Operator3.3 loop3.4 Collection3.5 Classes3.6 Promises3.7 Symbol3.8 Rest parameters3.9 Default parameters3.10 String.includes()3.11 string.startsWith()3.12 string.endsWith()3.13 Array.from()3.14 Array.keys()3.15 Array.find()3.16 Array.findIndex()3.17 Number3.18 isFinite() method3.19 isNaN() method3.20 Object enteries() method3.21 JavaScript modulesAdvance4.1 Define Exception handling in ES64.2 Debugging4.3 Object Literal4.4 Array4.5 Page Printing4.6 Page Redirect4.7 Cookies4.8 RegEx4.9 Validation4.10 Image Map4.11 HTML DOM4.12 Class Variable Alternatives4.13 Collection4.14 Multimedia4.15 Animation4.16 Dialog Boxes4.17 Import and ExportMethods5.1 Array filter() Method5.2 Array forEach() Method5.3 JavaScript at() Method5.4 New String Methods Differences Difference between ES6 and TypeScript Difference between Fetch and Axios for making http requests Difference between node.js require and ES6 import and export How ReactJS ES6 syntax is different compared to ES5 ? Differences between ES6 class and ES5 function constructors Difference between ES6 and TypeScript Difference between React Components in ES5 and ES6 ? Miscellaneous What are Block Scoped variables and functions in ES6 ? How to write a for loop in ES6 ? How to define a function in ES6 ? How to declare variables in different ways in JavaScript? When should one use Arrow functions in ES6 ? How to set default parameters in ES6 ? What are the states of promises in ES6 ? Explain the Generator Function in ES6 When should we use curly braces for ES6 import ? Shorthand Syntax for Object Property Value in ES6 How to copy properties from one object to another in ES6 ? What is blocked scoped variables ES6 ? How to use polyfill in JavaScript ? What are decorators and how are they used in JavaScript ? How to clone array in ES6 ? How to convert a plain object into ES6 Map using JavaScript ? What is the difference between Map and WeakMap in JavaScript ? What are these triple dots (...) in JavaScript ? How to check two numbers are approximately equal in JavaScript ? How to use Typescript with native ES6 Promises ? How to swap variables using destructuring assignment in JavaScript ? What is a Destructuring assignment and explain it in brief in JavaScript ? Which keywords can be used to implement inheritance in ES6 ? How to create a class in ES6 ? How to extend some class in ECMAScript 6 ? How does await and async works in ES6 ? How to filter an array of objects in ES6 ? What is the Temporal Dead Zone in ES6 ? How to get the first non-null/undefined argument in JavaScript ? Explain spread operator in ES6 with an Example Explain the Rest parameter in ES6 What are the template literals in ES6 ? How to implement inheritance in ES6 ? Extra All Features of ES2020 with Examples Create Quiz Comment M meetahaloyx4 Follow 1 Improve M meetahaloyx4 Follow 1 Improve Article Tags : JavaScript Web Technologies ES6 Explore JavaScript BasicsIntroduction to JavaScript4 min readVariables and Datatypes in JavaScript6 min readJavaScript Operators5 min readControl Statements in JavaScript4 min readArray & StringJavaScript Arrays7 min readJavaScript Array Methods7 min readJavaScript Strings5 min readJavaScript String Methods9 min readFunction & ObjectFunctions in JavaScript5 min readJavaScript Function Expression3 min readFunction Overloading in JavaScript4 min readObjects in JavaScript4 min readJavaScript Object Constructors4 min readOOPObject Oriented Programming in JavaScript3 min readClasses and Objects in JavaScript4 min readWhat Are Access Modifiers In JavaScript ?5 min readJavaScript Constructor Method7 min readAsynchronous JavaScriptAsynchronous JavaScript2 min readJavaScript Callbacks4 min readJavaScript Promise4 min readEvent Loop in JavaScript4 min readAsync and Await in JavaScript2 min readException HandlingJavascript Error and Exceptional Handling6 min readJavaScript Errors Throw and Try to Catch2 min readHow to create custom errors in JavaScript ?2 min readJavaScript TypeError - Invalid Array.prototype.sort argument1 min readDOMHTML DOM (Document Object Model)8 min readHow to select DOM Elements in JavaScript ?3 min readJavaScript Custom Events4 min readJavaScript addEventListener() with Examples9 min readAdvanced TopicsClosure in JavaScript4 min readJavaScript Hoisting6 min readScope of Variables in JavaScript3 min readJavaScript Higher Order Functions7 min readDebugging in JavaScript4 min read Like