Keyup only after last key with jquery

Question

I\'m coding a simple script to extract database informations on input keyup event.

The problem i have is that the keyup event is always repeated everytime the user press

Answer 1

var timer;

$("input").on('keyup', function() {
    clearTimeout(timer);  //clear any running timeout on key up
    timer = setTimeout(function() { //then give it a second to see if the user is finished
        //do .post ajax request //then do the ajax call
    }, 1000);
});