JavaScript DHTML/Javascript Objects/Number
Содержание
Convert a Number to a Exponential format
<source lang="html4strict">
<html> <body> <button onclick="var myNum = new Number(100); alert(myNum.toExponential(1));"> Number toExponential </button> </body> </html>
</source>
Convert a number to a precision
<source lang="html4strict">
<html> <body> <button onclick="var myNum = new Number(100); alert(myNum.toPrecision(1));"> Number toPrecision </button> </body> </html>
</source>
Fix a number
<source lang="html4strict">
<html> <body> <button onclick="var myNum = new Number(100.22); alert(myNum.toFixed(1));"> Number toFixed </button> </body> </html>
</source>
Number.MAX_VALUE
<source lang="html4strict">
<html>
<head>
<title>Number properties</title>
</head>
<body>
<script type="text/javascript">
document.writeln(Number.MAX_VALUE + "
");
</script>
</body>
</html>
</source>
Number.MIN_VALUE
<source lang="html4strict">
<html>
<head>
<title>Number properties</title>
</head>
<body>
<script type="text/javascript">
document.writeln(Number.MIN_VALUE + "
");
</script>
</body>
</html>
</source>
Number.NEGATIVE_INFINITY
<source lang="html4strict">
<html>
<head>
<title>Number properties</title>
</head>
<body>
<script type="text/javascript">
document.writeln(Number.NEGATIVE_INFINITY + "
");
</script>
</body>
</html>
</source>
Number.POSITIVE_INFINITY
<source lang="html4strict">
<html> <head> <title>Number properties</title> </head> <body> <script type="text/javascript">
document.writeln(Number.POSITIVE_INFINITY + "
");
</script> </body> </html>
</source>
Number.toExponential()
<source lang="html4strict">
<html>
<head>
<title>Number properties</title>
</head>
<body>
<script type="text/javascript">
var newValue = new Number("31234123.8896");
document.writeln(newValue.toExponential(3) + "
");
</script>
</body>
</html>
</source>
Number.toFixed()
<source lang="html4strict">
<html>
<head>
<title>Number properties</title>
</head>
<body>
<script type="text/javascript">
var newValue = new Number("4.8896");
document.writeln(newValue.toFixed(6) + "
");
</script>
</body>
</html>
</source>
Number.toPrecision()
<source lang="html4strict">
<html>
<head>
<title>Number properties</title>
</head>
<body>
<script type="text/javascript">
var newValue = new Number("4.8896");
document.writeln(newValue.toPrecision(3) + "
");
</script>
</body>
</html>
</source>
