Free JavaScript Example Codes

Checking that form fields have input is extremely important - having this performed before the form is submitted, client side, before its handled by anything at the backend sucrformed before the form is submitted, client side, before its handled by anything at the backend such as an SQL or MS Access database, is vital and an additional factor in getting accurate input.

This code contains functions to check null input and also to check if an email address follows a valid pattern.

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