aterrien/jQuery-Knob — pull request #134 by jwalton (2013-11-01 14:59:23+00:00)
Title: Add parse and format hooks

The idea here is you can do something like:

@$input.knob {
thickness: ".2",
readOnly: true,
width: "60%",
height: "60%",
angleArc: 250,
angleOffset: -125,
parse: function (v) {return parseInt(v);},
format: function (v) {return v + "%";}
}

The parse and format handlers will strip and add the "%" sign, respectively, so you get a knob that looks like:

![screen shot 2013-11-01 at 10 56 04 am](https://f.cloud.github.com/assets/1771003/1454262/c5671810-4305-11e3-8c7d-f37ce0609b99.png)

It will show the "%" even if you drag with the mouse or use arrow keys or what have you. You could use this to add a "$" or whatever unit you want, or even to show values in hex.