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

Encode String to Base-64

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:

For more Practice: Solve these Related Problems:

• Write a JavaScript program that encodes a string to Base-64 using btoa() in the browser.
• Write a JavaScript function that converts a given string into its Base-64 encoded equivalent and logs the output.
• Write a JavaScript program that handles Unicode characters during Base-64 encoding by first converting to UTF-8.
• Write a JavaScript function that encodes and then decodes a string using Base-64 to verify data integrity.

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