html catch event when user is typing into a text input

Question

Im just wondering how I go about catching the event when the user is typing into a text input field on my web application.

Scenario is, I have a contacts listing gri

Answer 1

see my try:

you should put .combo after every .input classes.

.input is a textbox and .combo is a div

$(".input").keyup(function(){
    var val = this.value;
    if (val.length > 1) {
        //you search method...
    }
    if (data) $(this).next(".combo").html(data).fadeIn(); else $(this).next(".combo").hide().html("");
});

$(".input").blur(function(){
    $(this).next(".combo").hide();
});