JavaScript: Create a base-64 encoded ASCII string from a String object in which each character in the string is treated as a byte of binary data

JavaScript fundamental (ES6 Syntax): Exercise-262 with Solution

Write a JavaScript program to create a base-64 encoded ASCII string from a String object in which each character in the string is treated as a byte of binary data.

• Create a Buffer for the given string with binary encoding and use Buffer.toString('base64') to return the encoded string.

Sample Solution:

JavaScript Code:

//#Source https://bit.ly/2neWfJ2 
// Define a function 'btoa' to encode a string to base64
const btoa = str => new Buffer(str, 'binary').toString('base64');

// Encode the string 'foobar' to base64
console.log(btoa('foobar'));

Flowchart:

Improve this sample solution and post your code through Disqus

Previous: Write a JavaScript program that will return true if the bottom of the page is visible, false otherwise.
Next: Write a JavaScript program to capitalize the first letter of a string.