how to split string on , to array in javascript code example

Example: split a message js

const message = 'This is a test'

var args = message.split(' ');

console.log(args[0]) // Responds "This"
console.log(args[1]) // Responds "is"
console.log(args[2]) // Responds "a"
console.log(args[3]) // Responds "test"