theodorosploumis

Profile	download (kb/s)	upload (kb/s)	latency (ms)
Native	0	0	0
GPRS	50	20	500
56K Dial-up	50	30	120
Mobile EDGE	240	200	840
2G Regular	250	50	300
2G Good	450	150	150
3G Slow	780	330	200

tilmanschweitzer

function interceptFunction (object, fnName, options) {
    var noop = function () {};
    var fnToWrap = object[fnName];
    var before = options.before || noop;
    var after = options.after || noop;

    object[fnName] = function () {
        before.apply(this, arguments);
        var result = fnToWrap.apply(this, arguments);
        after.apply(this, arguments);