rwaldron/10m-results.js

## 10m-results.js
// Results at 10,000,000 iterations

// $([]) omitted/not tested - caused chrome to crash
// $('null') omitted/not tested - caused chrome to crash

$(""):        1274ms
$(""):        1270ms
$(""):        1278ms
$(""):        1265ms

$(undefined): 1199ms
$(undefined): 1167ms
$(undefined): 1191ms
$(undefined): 1158ms

$(null):      1134ms
$(null):      1221ms
$(null):      1201ms
$(null):      1353ms

$(false):     1055ms
$(false):     1140ms
$(false):     1147ms
$(false):     1137ms

$(): 1203ms
$(): 1309ms
$(): 1161ms
$(): 1318ms

new jQuery.fn.init: 917ms
new jQuery.fn.init: 1050ms
new jQuery.fn.init: 939ms
new jQuery.fn.init: 919ms


## 1m-results.js
// Results at 1,000,000 iterations

$([]): 1552ms
$([]): 1163ms
$([]): 1188ms
$([]): 1146ms

$("null"): 8082ms
$("null"): 4418ms
$("null"): 7643ms
$("null"): 7875ms

$(""): 132ms
$(""): 126ms
$(""): 131ms
$(""): 116ms

$(undefined): 123ms
$(undefined): 118ms
$(undefined): 133ms
$(undefined): 119ms

$(null): 161ms
$(null): 154ms
$(null): 148ms
$(null): 173ms

$(false): 116ms
$(false): 118ms
$(false): 119ms
$(false): 104ms

$(): 127ms
$(): 150ms
$(): 127ms
$(): 172ms

new jQuery.fn.init: 87ms
new jQuery.fn.init: 94ms
new jQuery.fn.init: 98ms
new jQuery.fn.init: 95ms


## empty-jquery.html
<!DOCTYPE html>
<html>
  <head>
    <title>jQuery Selects Nothing</title>
    <script src="http://code.jquery.com/jquery.js"></script>
    <script>
      $(function () {
        var iter  = 1000000; // change to 10000000 for tsting

        console.time('$([])');
        for ( var i = 0; i < iter; i++ ) {
          var a = $([]);
        }
        console.log(a instanceof jQuery); //true
        console.timeEnd('$([])');


        console.time('$("null")');
        for ( var i = 0 ; i < iter; i++ ) {
          var ns = $('null');
        }
        console.log(ns instanceof jQuery); // true
        console.timeEnd('$("null")');

        console.time('$("")');
        for (  var i = 0; i < iter; i++ ) {
          var es = $("");
        }
        console.log(es instanceof jQuery); //true
        console.timeEnd('$("")');


        console.time('$(undefined)');
        for (  var i = 0; i < iter; i++ ) {
          var u = $(undefined);
        }
        console.log(u instanceof jQuery); //true
        console.timeEnd('$(undefined)');

        console.time('$(null)');
        for (  var i = 0; i < iter; i++ ) {
          var n = $(null);
        }
        console.log(n instanceof jQuery); //true
        console.timeEnd('$(null)');

        console.time('$(false)');
        for (  var i = 0; i < iter; i++ ) {
          var f = $(false);
        }
        console.log(f instanceof jQuery); //true
        console.timeEnd('$(false)');


        console.time('$()');
        for (  var i = 0; i < iter; i++ ) {
          var none = $();
        }
        console.log(none instanceof jQuery); //true
        console.timeEnd('$()');

        console.time('new jQuery.fn.init');
        for (  var i = 0; i < iter; i++ ) {
          var init = new jQuery.fn.init;
        }
        console.log(init instanceof jQuery); //true
        console.timeEnd('new jQuery.fn.init');
      });
    </script>
  </head>
  <body>
  </body>
</html>

## jquery-condition.js
// Handle $(""), $(null), or $(undefined)
if ( !selector ) {
	return this;
}
	// Results at 10,000,000 iterations

	// $([]) omitted/not tested - caused chrome to crash
	// $('null') omitted/not tested - caused chrome to crash

	$(""): 1274ms
	$(""): 1270ms
	$(""): 1278ms
	$(""): 1265ms

	$(undefined): 1199ms
	$(undefined): 1167ms
	$(undefined): 1191ms
	$(undefined): 1158ms

	$(null): 1134ms
	$(null): 1221ms
	$(null): 1201ms
	$(null): 1353ms

	$(false): 1055ms
	$(false): 1140ms
	$(false): 1147ms
	$(false): 1137ms

	$(): 1203ms
	$(): 1309ms
	$(): 1161ms
	$(): 1318ms

	new jQuery.fn.init: 917ms
	new jQuery.fn.init: 1050ms
	new jQuery.fn.init: 939ms
	new jQuery.fn.init: 919ms
	// Results at 1,000,000 iterations

	$([]): 1552ms
	$([]): 1163ms
	$([]): 1188ms
	$([]): 1146ms

	$("null"): 8082ms
	$("null"): 4418ms
	$("null"): 7643ms
	$("null"): 7875ms

	$(""): 132ms
	$(""): 126ms
	$(""): 131ms
	$(""): 116ms

	$(undefined): 123ms
	$(undefined): 118ms
	$(undefined): 133ms
	$(undefined): 119ms

	$(null): 161ms
	$(null): 154ms
	$(null): 148ms
	$(null): 173ms

	$(false): 116ms
	$(false): 118ms
	$(false): 119ms
	$(false): 104ms

	$(): 127ms
	$(): 150ms
	$(): 127ms
	$(): 172ms

	new jQuery.fn.init: 87ms
	new jQuery.fn.init: 94ms
	new jQuery.fn.init: 98ms
	new jQuery.fn.init: 95ms
	<!DOCTYPE html>
	<html>
	<head>
	<title>jQuery Selects Nothing</title>
	<script src="http://code.jquery.com/jquery.js"></script>
	<script>
	$(function () {
	var iter = 1000000; // change to 10000000 for tsting

	console.time('$([])');
	for ( var i = 0; i < iter; i++ ) {
	var a = $([]);
	}
	console.log(a instanceof jQuery); //true
	console.timeEnd('$([])');


	console.time('$("null")');
	for ( var i = 0 ; i < iter; i++ ) {
	var ns = $('null');
	}
	console.log(ns instanceof jQuery); // true
	console.timeEnd('$("null")');

	console.time('$("")');
	for ( var i = 0; i < iter; i++ ) {
	var es = $("");
	}
	console.log(es instanceof jQuery); //true
	console.timeEnd('$("")');


	console.time('$(undefined)');
	for ( var i = 0; i < iter; i++ ) {
	var u = $(undefined);
	}
	console.log(u instanceof jQuery); //true
	console.timeEnd('$(undefined)');

	console.time('$(null)');
	for ( var i = 0; i < iter; i++ ) {
	var n = $(null);
	}
	console.log(n instanceof jQuery); //true
	console.timeEnd('$(null)');

	console.time('$(false)');
	for ( var i = 0; i < iter; i++ ) {
	var f = $(false);
	}
	console.log(f instanceof jQuery); //true
	console.timeEnd('$(false)');


	console.time('$()');
	for ( var i = 0; i < iter; i++ ) {
	var none = $();
	}
	console.log(none instanceof jQuery); //true
	console.timeEnd('$()');

	console.time('new jQuery.fn.init');
	for ( var i = 0; i < iter; i++ ) {
	var init = new jQuery.fn.init;
	}
	console.log(init instanceof jQuery); //true
	console.timeEnd('new jQuery.fn.init');
	});
	</script>
	</head>
	<body>
	</body>
	</html>
	// Handle $(""), $(null), or $(undefined)
	if ( !selector ) {
	return this;
	}