Copy another textbox value in real time Jquery

Question

I want to get the value of another textbox and input it in realtime into the other textbox. HOW CAN I DETECT IF TEXT_3 WAS CHANGED? IF TEXT_3 VALUE CHANGED, IT MUST BE INPU

Answer 1

the change event fires after the input field has lost it's focus. If you want to update it in realtime you also need the keyup event, so something like this:

$("#text_3").keyup(function(){
    $("#text_4").val($("#text_3").val());
})