rniwa/gist:572ed56668366e6542d3 Secret

## gistfile1.html
<!DOCTYPE html>
<html>
<body>
<pre>
<script>

function newObjects() {
    var objects = new Array(1e6);
    for (var i = 0; i < objects.length; i++)
        objects[i] = {};
    return objects;
}

function setProp(objects, prop, value) {
    for (var i = 0; i < objects.length; i++)
        objects[i][prop] = value;
}

function accessProp(objects, prop, value) {
    var sum = 0;
    for (var i = 0; i < objects.length; i++)
        sum += objects[i][prop];
    return sum;
}

logs = '';

function logTime(name, time) {
    logs += name + ': ' + time + ' ms \n';
}

(function () {
    var labels = ['a', 'b', 'c', 'd'];
    var objects = newObjects();
    var start = Date.now();
    for (var i = 0; i < labels.length; i++)
        setProp(objects, labels[i], i + 1);
    logTime('Defining string properties', Date.now() - start);

    window.sum = 0;
    start = Date.now();
    for (var i = 0; i < labels.length; i++)
        window.sum += accessProp(objects, labels[i], i + 1);
    logTime('Accessing string properties', Date.now() - start);
})();

(function () {
    var symbols = [Symbol('a'), Symbol('b'), Symbol('c'), Symbol('d')];
    var objects = newObjects();
    var start = Date.now();
    for (var i = 0; i < symbols.length; i++)
        setProp(objects, symbols[i], i + 1);
    logTime('Defining symbol properties', Date.now() - start);

    window.sum = 0;
    start = Date.now();
    for (var i = 0; i < symbols.length; i++)
        window.sum += accessProp(objects, symbols[i], i + 1);
    logTime('Accessing string properties', Date.now() - start);
})();

document.write(logs);

</script>
</pre>
</body>
</html>
	<!DOCTYPE html>
	<html>
	<body>
	<pre>
	<script>

	function newObjects() {
	var objects = new Array(1e6);
	for (var i = 0; i < objects.length; i++)
	objects[i] = {};
	return objects;
	}

	function setProp(objects, prop, value) {
	for (var i = 0; i < objects.length; i++)
	objects[i][prop] = value;
	}

	function accessProp(objects, prop, value) {
	var sum = 0;
	for (var i = 0; i < objects.length; i++)
	sum += objects[i][prop];
	return sum;
	}

	logs = '';

	function logTime(name, time) {
	logs += name + ': ' + time + ' ms \n';
	}

	(function () {
	var labels = ['a', 'b', 'c', 'd'];
	var objects = newObjects();
	var start = Date.now();
	for (var i = 0; i < labels.length; i++)
	setProp(objects, labels[i], i + 1);
	logTime('Defining string properties', Date.now() - start);

	window.sum = 0;
	start = Date.now();
	for (var i = 0; i < labels.length; i++)
	window.sum += accessProp(objects, labels[i], i + 1);
	logTime('Accessing string properties', Date.now() - start);
	})();

	(function () {
	var symbols = [Symbol('a'), Symbol('b'), Symbol('c'), Symbol('d')];
	var objects = newObjects();
	var start = Date.now();
	for (var i = 0; i < symbols.length; i++)
	setProp(objects, symbols[i], i + 1);
	logTime('Defining symbol properties', Date.now() - start);

	window.sum = 0;
	start = Date.now();
	for (var i = 0; i < symbols.length; i++)
	window.sum += accessProp(objects, symbols[i], i + 1);
	logTime('Accessing string properties', Date.now() - start);
	})();

	document.write(logs);

	</script>
	</pre>
	</body>
	</html>