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InterviewSolution
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How Can I Know That A Variable Is A Number Or Not Using A Javascript? |
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Answer» bool is_numeric ( MIXED var) Returns TRUE if var is a number or a numeric string, FALSE otherwise.or use isNaN(mixed var)The isNaN() function is USED to check if a VALUE is not a number. bool is_numeric ( mixed var) Returns TRUE if var is a number or a numeric string, FALSE otherwise.or use isNaN(mixed var)The isNaN() function is used to check if a value is not a number. |
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