Binding arrow keys in JS/jQuery

Question

How do I go about binding a function to left and right arrow keys in Javascript and/or jQuery? I looked at the js-hotkey plugin for jQuery (wraps the built-in bind function

Answer 1

$(document).keydown(function(e){
    if (e.which == 37) { 
       alert("left pressed");
       return false;
    }
});

Character codes:

37 - left

38 - up

39 - right

40 - down