Encoding Base64 JavaScript

Encoding And Decoding Strings With Base64 Using JavaScript

btoa() and atob() are two Base64 JavaScript functions that are a core part of the HTML specification and available in all modern browsers.

btoa() JavaScript Function

Type this code in  browser’s web developer console log:

// Define the string

var decodedStringBtoA = 'Hello World!';

// Encode the String

var encodedStringBtoA = btoa(decodedStringBtoA);

console.log(encodedStringBtoA);

Output:

SGVsbG8gV29ybGQh

atob() JavaScript Function

Type this code in  browser’s web developer console log:

// Define the string

var encodedStringAtoB = 'SGVsbG8gV29ybGQh';

// Decode the String

var decodedStringAtoB = atob(encodedStringAtoB);

console.log(decodedStringAtoB);

Output:

Hello World!

Bibliography:

Eloquent JavaScript;Marijn Haverbeke;No Starch Press

Effective JavaScript;David Herman;Addison Wesley

JavaScript: The Definitive Guide;David Flanagan;O'Reilly

https://www.instagram.com/thecodecrumbs/

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