jQuery Event Keypress: Which key was pressed?

Question

With jQuery, how do I find out which key was pressed when I bind to the keypress event?

$(\'#searchbox input\').bind(\'keypress\', function(e) {});


        

Answer 1

Witch ;)

/*
This code is for example. In real life you have plugins like :
https://code.google.com/p/jquery-utils/wiki/JqueryUtils
https://github.com/jeresig/jquery.hotkeys/blob/master/jquery.hotkeys.js
https://github.com/madrobby/keymaster
http://dmauro.github.io/Keypress/

http://api.jquery.com/keydown/
http://api.jquery.com/keypress/
*/

var event2key = {'97':'a', '98':'b', '99':'c', '100':'d', '101':'e', '102':'f', '103':'g', '104':'h', '105':'i', '106':'j', '107':'k', '108':'l', '109':'m', '110':'n', '111':'o', '112':'p', '113':'q', '114':'r', '115':'s', '116':'t', '117':'u', '118':'v', '119':'w', '120':'x', '121':'y', '122':'z', '37':'left', '39':'right', '38':'up', '40':'down', '13':'enter'};

var documentKeys = function(event) {
    console.log(event.type, event.which, event.keyCode);

    var keycode = event.which || event.keyCode; // par exemple : 112
    var myKey = event2key[keycode]; // par exemple : 'p'

    switch (myKey) {
        case 'a':
            $('div').css({
                left: '+=50'
            });
            break;
        case 'z':
            $('div').css({
                left: '-=50'
            });
            break;
        default:
            //console.log('keycode', keycode);
    }
};

$(document).on('keydown keyup keypress', documentKeys);

Demo : http://jsfiddle.net/molokoloco/hgXyq/24/

Answer 2

Use event.key and modern JS!

No number codes anymore. You can check key directly. For example "Enter", "LeftArrow", "r", or "R".

const input = document.getElementById("searchbox");
input.addEventListener("keypress", function onEvent(event) {
    if (event.key === "Enter") {
        // Submit
    }
    else if (event.key === "Q") {
        // Play quacking duck sound, maybe...
    }
});

Mozilla Docs

Supported Browsers

Answer 3

$(document).bind('keypress', function (e) {
    console.log(e.which);  //or alert(e.which);

});

you should have firbug to see a result in console

Answer 4

Try this:

jQuery('#myInput').keypress(function(e) {
    code = e.keyCode ? e.keyCode : e.which;
    if(code.toString() == 13) {
        alert('You pressed enter!');
    }
});

Answer 5

$(document).ready(function(){
    $("#btnSubmit").bind("click",function(){$('#'+'<%=btnUpload.ClientID %>').trigger("click");return false;});
    $("body, input, textarea").keypress(function(e){
        if(e.which==13) $("#btnSubmit").click();
    });
});

Hope this may help you!!!

Answer 6

Here is an at-length description of the behaviour of various browsers http://unixpapa.com/js/key.html