JavaScript is a modern scripting language that is popular worldwide among developers. It is a lightweight, interpreted compiled language that can be used on both client-side as well as the server side. It was invented in the year 1995 by Brendan Eich. Over the years the language has improved a lot and a lot of new features have been added which make the coding process even easier. This language became an ECMA standard in the year 1997.We will discuss the various versions, their features as well as the release date in the table below.
Version
Name
Release Year
Features
ES1
ECMAScript 1
1997
Initial Release
ES2
ECMAScript 2
1998
Minor Editorial Changes
ES3
ECMAScript 3
1999
Added:
Regular Expression
try/catch
Exception Handling
switch case and do-while
ES4
ECMAScript 4
Abandoned due to conflicts
ES5
ECMAScript 5
2009
Added:
JavaScript “strict mode”
JSON support
JS getters and setters
ES6
ECMAScript 2015
2015
Added:
let and const
Class declaration
import and export
for..of loop
Arrow functions
ES7
ECMAScript 2016
2016
Added:
Block scope for variable
async/await
Array.includes function
Exponentiation Operator
ES8
ECMAScript 2017
2017
Added:
Object.values
Object.entries
Object.getOwnPropertiesDescriptors
ES9
ECMAScript 2018
2018
Added:
spread operator
rest parameters
ES10
ECMAScript 2019
2019
Added:
Array.flat()
Array.flatMap()
Array.sort is now stable
ES11
ECMAScript 2020
2020
Added:
BigInt primitive type
nullish coalescing operator
ES12
ECMAScript 2021
2021
Added:
String.replaceAll() Method
Promise.any() Method
ES13
ECMAScript 2022
2022
Added:
Top-level await
New class elements
Static block inside classes
ES.Next
Dynamic name for upcoming versions
Note: Older versions of browsers do not support ES6.
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