Validating data javascript

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validate Empty ( ) The function below checks if a required field has been left empty.If the required field is blank, we return the error string to the main function.All those functions are called from another function.

Below are the ways to get the value from all types of form elements.In this document, we have discussed Java Script Form Validation using a sample registration form.The tutorial explores Java Script validation on submit with detail explanation.When you submit a form to a CGI program that resides on the server, it is usually programmed to do its own check for errors.If it finds any it sends the page back to the reader who then has to re-enter some data, before submitting again.

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