rinunu/array push 速度計測.html

## array push 速度計測.html
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
  <head>
    <title>test</title>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
    <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script>
    <script type="text/javascript">
var tests = {};
tests.push = function(){
    var array = [];
    for(var i = 0; i < 10000; i++){
	array.push("test");
    }
}

tests.length = function(){
  var array = [];
  for(var i = 0; i < 10000; i++){
    array[array.length] = "test";
  }
}

tests.unshift = function(){
  var array = [];
  for(var i = 0; i < 10000; i++){
    array.unshift("test");
  }
}

tests.splice = function(){
  var array = [];
  for(var i = 0; i < 10000; i++){
    array.splice(array, 0, 0, "test");
  }
}

tests.set = function(){
  var array = [];
  for(var i = 0; i < 10000; i++){
    array[i] = "test";
  }
}

function run(){
  for(var i in tests){
    var start = new Date();
    tests[i]();
    $("<tr><td>" + i + "</td><td>" + (new Date - start) + "ms</td></tr>").appendTo($("#result"));
  }
}

$(run);

</script>
</head>


<body>
  result
  <table id="result">
  </table>
</body>

</html>
	<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
	<html>
	<head>
	<title>test</title>
	<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
	<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script>
	<script type="text/javascript">
	var tests = {};
	tests.push = function(){
	var array = [];
	for(var i = 0; i < 10000; i++){
	array.push("test");
	}
	}

	tests.length = function(){
	var array = [];
	for(var i = 0; i < 10000; i++){
	array[array.length] = "test";
	}
	}

	tests.unshift = function(){
	var array = [];
	for(var i = 0; i < 10000; i++){
	array.unshift("test");
	}
	}

	tests.splice = function(){
	var array = [];
	for(var i = 0; i < 10000; i++){
	array.splice(array, 0, 0, "test");
	}
	}

	tests.set = function(){
	var array = [];
	for(var i = 0; i < 10000; i++){
	array[i] = "test";
	}
	}

	function run(){
	for(var i in tests){
	var start = new Date();
	tests[i]();
	$("<tr><td>" + i + "</td><td>" + (new Date - start) + "ms</td></tr>").appendTo($("#result"));
	}
	}

	$(run);

	</script>
	</head>


	<body>
	result
	<table id="result">
	</table>
	</body>

	</html>