How to convert text to binary code in JavaScript?

Question

Text to Binary Code

I want JavaScript to translate text in a textarea into binary code.

For example, if a user types in "TEST

Answer 1

8-bit characters with leading 0

'sometext'
        .split('')
        .map((char) => '00'.concat(char.charCodeAt(0).toString(2)).slice(-8))
        .join(' ');

If you need 6 or 7 bit, just change .slice(-8)