Keypress: A Javascript library for capturing input
Note that you should avoid using this (or anything else with JS) to emulate shortcuts.<p>The reason is because what this usually looks like "oh nice I can define shortcuts people can press". What it actually means is: "Ohcrap, that shortcut only works for US-US 104 keyboard layouts, and about 80% of people can't press that shortcut".<p>For example: suppose you want a shortcut for shift+/, which is for the US keyboard under the small right finger. But that shortcut can't be defined for SG (swiss-german) because there the / is on the numeric bar where 7 is. So if you assume (for whatever reason) that left+right small finger is a convenient shortcut, and left small finger + right index finger top isn't, then you're totally screwed. Instead, to reach the right small finger low on swiss german, you'd have to define shift + "-". Except that if you define that, it'll be one of the most uncomfortable keyboard shortcuts imaginable for US users, which find - on the numeric row top --> bottom left small finger + top right small finger = ugh.<p>The truth is that you cannot do reasonable shortcut definition the way that everybody would like to with JS... yet.<p>But wait, can't you like, define some reasonable presets and let people choose their own? The answer is no, because you don't have a reliable way to translate a keydown/keyup to a unicode char, and the unicode char is related to the modifier keys, not the key cap, so though you can do that shortcut definition, you can't show to the user what that shortcut definition actually is, because it'd be either undefined or completely wrong.<p>I've written at length about this here: <a href="http://codeflow.org/entries/2013/jan/30/keyboard-events-in-javascript-are-broken/" rel="nofollow">http://codeflow.org/entries/2013/jan/30/keyboard-events-in-j...</a>