Copy text of a field into another automatically

Question

I need to copy the text entered in a field (whether it was typed in, pasted or from browser auto-filler) and paste it in another field either at the same time or as soon as

Answer 1

$(document).ready(function() {
 $('.textBox1').on('change', function() {
   $('.textBox2').val($(this).val());
 }); 
});