描述
This is a special numeric value representing any value greater than Number.MAX_VALUE. This value is represented as "Infinity". It resembles an infinity in its mathematical behavior. For example, anything multiplied by POSITIVE_INFINITY is POSITIVE_INFINITY, and anything divided by POSITIVE_INFINITY is zero.
由于正无穷大是一个常数,因此它是number的只读属性。
语法
使用以下语法来使用active_infinity。
var val=Number.POSITIVE_INFINITY;
举例
尝试以下示例以了解如何使用posal_infinity。
<html>
<head>
<script type="text/javascript">
<!--
function showValue() {
var bigNumber=Number.MAX_VALUE * 2
if (bigNumber == Number.POSITIVE_INFINITY) {
alert("Value of bigNumber : " + bigNumber );
}
}
//-->
</script>
</head>
<body>
<p>Click the following to see the result:</p>
<form>
<input type="button" value="Click Me" onclick="showValue();" />
</form>
</body>
</html>
