How to get the output from console.timeEnd() in JS Console?

Question

I\'d like to be able to get the string returned from console.timeEnd(\'t\') in my Google Chrome Javascript Console.

In this example below, I\'d like one var

Answer 1

Small helper to do some time measuring. timerEnd returns the time in ms, also the timers object contains information about how many times the timer with this name was used, the sum of all measured times and the average of the measurements. I find this quite useful, since the measured time for an operation depends on many factors, so it's best to measure it several times and look at the average.

var timers = {};
function timer(name) {
    timers[name + '_start'] = window.performance.now();
}

function timerEnd(name) {
    if (!timers[name + '_start']) return undefined;
    var time = window.performance.now() - timers[name + '_start'];
    var amount = timers[name + '_amount'] = timers[name + '_amount'] ? timers[name + '_amount'] + 1 : 1;
    var sum = timers[name + '_sum'] = timers[name + '_sum'] ? timers[name + '_sum'] + time : time;
    timers[name + '_avg'] = sum / amount;
    delete timers[name + '_start'];
    return time;
}