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If the string value is numeric, it will return true, otherwise it will return false.

It happens sometimes, when user forgets to choose option from the select feild.In that case, the form should convey about issue so that user can take the action.So, just to make sure that user entered the email address in the correct format, it’s necessary to include email validation code inside the validation codes.family=Open Sans"); /* Color settings */ $form Bg: #2c3e50; $form Color: #fff; $input Bg: #fff; $input Color: #000; $button Bg: #e67e22; $button Color: #fff; $error Msg Color: #ff0000; /* Styles */ * body .container form That’s it, you’re done!Now you have an idea how to set up form validation with j Query.