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Asp编程 > Numeric - Check - with - some - Regular - Expression - magic
【问题文章】Numeric - Check - with - some - Regular - Expression - magic
浏览次数:【407】 发布日期:2009-8-13 12:09:22 文章分类:Asp编程
<script language="javascript" runat="server">
// Checks that the string supplied can be expressed as a number (float)
function isNumeric(strNumber) {
return (strNumber.search(/^(-|\+)?\d+(\.\d+)?$/) != -1);
}
// Checks that the string supplied can be expressed as an unsigned number (float)
function isUnsignedNumeric(strNumber) {
return (strNumber.search(/^\d+(\.\d+)?$/) != -1);
}
// Checks that the string supplied can be expressed as an integer
function isInteger(strInteger) {
return (strInteger.search(/^(-|\+)?\d+$/) != -1);
}
// Checks that the string supplied can be expressed as an unsigned integer
function isUnsignedInteger(strInteger) {
return (strInteger.search(/^\d+$/) != -1);
}
</script>