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function isNumeric(strNumber) {
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alert(newPar.test(strNumber)); }
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function isUnsignedNumeric(strNumber) {
var newPar=/^\d+(\.\d+)?$/
alert(newPar.test(strNumber)); }
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function isInteger(strInteger) {
var newPar=/^(-|\+)?\d+$/
alert(newPar.test(strInteger)); }
//¼ì²éÊÇ·ñΪÕýÕûÊý
function isUnsignedInteger(strInteger) {
var newPar=/^\d+$/
alert(newPar.test(strInteger)); }
</script>
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[·­Òë]High Performance JavaScript(032)

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JavaScript±à³Ì±Ê¼Ç

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<script>
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function isNumeric(strNumber) {
var newPar=/^(-|\+)?\d+(\.\d+)?$/
alert(newPar.test(strNumber)); }
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