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Below is a list of libraries that support Base64 encoding and decoding in TypeScript along with sample code for each library.

1. JavaScript Standard Library (btoa and atob)

The JavaScript standard library provides the btoa and atob functions for Base64 encoding and decoding, which can also be used in TypeScript.

const originalString: string = "test input";

// Encode
const encodedString: string = btoa(originalString);
console.log("Encoded: " + encodedString);

// Decode
const decodedString: string = atob(encodedString);
console.log("Decoded: " + decodedString);

    

2. Buffer (Node.js)

Node.js provides the Buffer class which supports Base64 encoding and decoding, which can also be used in TypeScript.

const originalString: string = "test input";

// Encode
const encodedString: string = Buffer.from(originalString).toString('base64');
console.log("Encoded: " + encodedString);

// Decode
const decodedString: string = Buffer.from(encodedString, 'base64').toString('utf-8');
console.log("Decoded: " + decodedString);

    

3. js-base64

The js-base64 library provides utilities for Base64 encoding and decoding in both browser and Node.js environments, which can also be used in TypeScript.

import { Base64 } from 'js-base64';

const originalString: string = "test input";

// Encode
const encodedString: string = Base64.encode(originalString);
console.log("Encoded: " + encodedString);

// Decode
const decodedString: string = Base64.decode(encodedString);
console.log("Decoded: " + decodedString);

    

Add the dependency using npm:

npm install js-base64
    

4. CryptoJS

CryptoJS is a widely-used cryptographic library that also supports Base64 encoding and decoding, which can also be used in TypeScript.

import CryptoJS from 'crypto-js';

const originalString: string = "test input";

// Encode
const encodedString: string = CryptoJS.enc.Base64.stringify(CryptoJS.enc.Utf8.parse(originalString));
console.log("Encoded: " + encodedString);

// Decode
const decodedString: string = CryptoJS.enc.Base64.parse(encodedString).toString(CryptoJS.enc.Utf8);
console.log("Decoded: " + decodedString);

    

Add the dependency using npm:

npm install crypto-js
    

5. Buffer in React Native

In React Native, you can use the Buffer class from the buffer library for Base64 encoding and decoding, which can also be used in TypeScript.

import { Buffer } from 'buffer';

const originalString: string = "test input";

// Encode
const encodedString: string = Buffer.from(originalString).toString('base64');
console.log("Encoded: " + encodedString);

// Decode
const decodedString: string = Buffer.from(encodedString, 'base64').toString('utf-8');
console.log("Decoded: " + decodedString);

    

Add the dependency using npm:

npm install buffer
    

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