How can I know that a variable is a number or not using a JavaScript?

How can I know that a variable is a number or not using a
JavaScript?

Question Posted / phpwizz

Answers were Sorted based on User's Feedback

How can I know that a variable is a number or not using a JavaScript?..

Answer / venkat

By using isNaN() function

Is This Answer Correct ?

21 Yes

1 No

How can I know that a variable is a number or not using a JavaScript?..

Answer / umapathi

bool_is_numeric

Is This Answer Correct ?

8 Yes

3 No

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