Perfs2Recursion

index.html

<input type="button" onclick="run()" value="Start" />
<div id="output" style="white-space:pre-wrap;">
</div>

perf.js

var Benchmark = require('benchmark');
var suite = new Benchmark.Suite;

var tbody = document.createElement('tbody');
for (var i = 0; i < 100; i++) {
    tbody.insertRow().insertCell()
}
var rows = tbody.rows;
var output = document.getElementById("output");
function log(text) {
	output.appendChild(document.createTextNode(text + '\n'));
}
function run() {
	log("Starting...");
  suite.run({ 'async': true });
}

// add tests
suite
.add('for push', function() {
	var arr = [];
	for (var index = 0, count = rows.length; index < count; ++index) {
		arr.push(rows[index]);
	}
})
.add('for set', function() {
	var arr = Array(rows.length);
	for (var index = 0, count = rows.length; index < count; ++index) {
		arr[index] = rows[index];
	}
})
.add('push.apply', function() {
	var arr = [];
	[].push.apply(arr, rows);
})
.add('slice.call', function() {
	//will fail in IE8
	var arr = [].slice.call(rows);
})
.add('while set', function() {
	var arr = Array(rows.length);
	var index = rows.length;
	while (index--) {
		arr[index] = rows[index];
	}
})
// add listeners
.on('cycle', function(event) {
	log(String(event.target));
})
.on('complete', function() {
	log('Fastest is ' + this.filter('fastest').map('name'));
})
// run tests async
//.run({ 'async': true })
;