btoa is not defined javascript code example

Example 1: nodejs btoa

Buffer.from('Hello world!', 'binary').toString('base64')

Example 2: rror: btoa is not defined

console.log(Buffer.from('Hello World!').toString('base64'));

Example 3: jQuery is not defined load-scripts.php

Try adding define('CONCATENATE_SCRIPTS', false); to your wp-config.php file just below the define('DB_HOST' line.