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This method returns true if obj is of type number, false otherwise.
Object.isNumber(obj); |
<html> <head> <title>Prototype examples</title> <script type="text/javascript" src="/javascript/prototype.js"> </script> <script> function showResult(){ var myNumber = 100; alert( "test 1: " + Object.isNumber(0) ); alert( "test 2: " + Object.isNumber(1.2) ); alert( "test 3: " + Object.isNumber("foo") ); alert( "test 4: " + Object.isNumber(myNumber) ); } </script> </head> <body> <p>Click the button to see the result.</p> <br /> <br /> <input type="button" value="Result" onclick="showResult();"/> </body> </html> |
To understand it in better way you can Try it yourself.
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