JAVASCRIPT

base64 to string and string to base64 javascript decode

// base64 to string
let base64ToString = Buffer.from(obj, "base64").toString();
base64ToString = JSON.parse(base64ToString);

//or
let str = 'bmltZXNoZGV1amEuY29t';
let buff = new Buffer(str, 'base64');
let base64ToStringNew = buff.toString('ascii');

// string to base64
let data = 'nimeshdeuja.com';
let buff = new Buffer(data);
let stringToBase64 = buff.toString('base64');

js decode base64

let str = 'bmltZXNoZGV1amEuY29t';
let buff = new Buffer(str, 'base64');
let base64ToStringNew = buff.toString('utf8');

javascript base64 decode

// Define the string
var string = 'Hello World!';

// Encode the String
var encodedString = btoa(string);
console.log(encodedString); // Outputs: "SGVsbG8gV29ybGQh"

// Decode the String
var decodedString = atob(encodedString);
console.log(decodedString); // Outputs: "Hello World!"

javascript decode a sting in base64

const data = 'CodezUp';
console.log('---ORIGINAL-----', data)

// Encode String

const encode = Buffer.from(data).toString('base64')
console.log('
---ENCODED-----', encode)

// Decode String

const decode = Buffer.from(encode, 'base64').toString('utf-8')
console.log('
---DECODED-----', decode)

javascript encode base64

const encoded = window.btoa('Alireza Dezfoolian'); // encode a string
const decoded = window.atob(encoded); // decode the string

javascript base64 decode

var decodedString = atob(encodedString);

base64 encode in javascript

const base64Encode = (string) => {
  const newText = btoa(string);
  return newText;
};

js base64 encode

function toBinary(string) {
  const codeUnits = new Uint16Array(string.length);
  for (let i = 0; i < codeUnits.length; i++) {
    codeUnits[i] = string.charCodeAt(i);
  }
  return String.fromCharCode(...new Uint8Array(codeUnits.buffer));
}

function fromBinary(binary) {
  const bytes = new Uint8Array(binary.length);
  for (let i = 0; i < bytes.length; i++) {
    bytes[i] = binary.charCodeAt(i);
  }
  return String.fromCharCode(...new Uint16Array(bytes.buffer));
}

const myString = "☸☹☺☻☼☾☿"
// console.log(btoa(myString)) // Error InvalidCharacterError: The string to be encoded contains characters outside of the Latin1 range.
const converted = toBinary(myString)
const encoded = btoa(converted)
console.log(encoded)

const decoded = atob(encoded)
const original = fromBinary(decoded)
console.log(original);