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<!DOCTYPE html> |
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<html lang="en"> |
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|
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<head> |
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<meta charset="UTF-8"> |
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<title>isNumber</title> |
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<meta name="author" content="galendw"> |
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<script src="prototype.js" type="text/javascript" charset="utf-8"></script> |
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<script type="text/javascript" charset="utf-8"> |
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var myIsNumber = function (object) |
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{ |
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return (((typeof object) == 'number') && (!isNaN(object))); |
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} |
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document.write('Object.isNumber: ' + Object.isNumber); |
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document.write('<br>Object.isNumber(NaN) => ' + Object.isNumber(NaN)); |
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document.write('<br><br>'); |
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document.write('myIsNumber: ' + myIsNumber); |
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document.write('<br>myIsNumber(NaN) => ' + myIsNumber(NaN)); |
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</script> |
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</head> |
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<body> |
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|
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<p><small>Must have prototype.js included.</small></p> |
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</body> |
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</html> |
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