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

Answer Posted / venkat

By using isNaN() function

Is This Answer Correct ?    21 Yes 1 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

What are form input html tags?

561


What is the advantage of runtime polymorphism?

509


What is the current php version?

554


What do you use php for?

532


How do I escape in php?

549






How do I check if a given variable is empty?

530


Which of the delimiter is ASP style?

626


What is mysql_fetch_array?

525


Can php use gettext?

563


Do you know what is the differences between $a != $B and $a !== $B?

499


Explain what is memcache?

510


What is a controller in php?

556


What is $_ get?

533


What is php resource type?

534


How to get the IP address of the client/user in PHP?

519