JavaScript Reference/Javascript Objects/Number — различия между версиями
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Текущая версия на 08:22, 26 мая 2010
Содержание
"Number" Example
<html>
<body>
<script language="javascript">
function function1(){
var number = new Number(23003.340304);
alert(number.toFixed(2));
}
</script>
<button onclick="function1();">Round the number</button>
</body>
</html>
"Number" JavaScript Methods
+----------------+--------------------------------------------------------------+
| JavaScript |toExponential toFixed |
| Methods |toLocaleString toPrecision |
| |toString toSource |
| |valueOf |
+----------------+--------------------------------------------------------------+
"Number" JavaScript Properties
+----------------+--------------------------------------------------------------+
| JavaScript |constructor MAX_VALUE |
| Properties |MIN_VALUE NEGATIVE_INFINITE |
| |POSITIVE_INFINITE |
+----------------+--------------------------------------------------------------+
"Number" Syntax and Note
Note:
Perform numerical operations.
Syntax:
var numberName = new Number(value) // value is any number
numberName.memberName