Introduction to Forms

Website Forms

Website Forms

However, this page contains a more complete overview of how to write a basic form validation script.

On this page I give the code you need for checking user input in a form. Using these bits of code, you can write your own scripts to validate forms

I can’t give you a complete script, because each form and each check are different.
You’ll have to use the elements I explain on this page to build your own script. I created an example form and script that you can study to get the hang of it.

On this page I discuss the limitations of using JavaScript to check a form, then I’ll explain the on-submit event handler, followed by the few methods and properties of the form itself. Then it’s time for accessing the form elements and the specific syntax for accessing the user defined value of form elements.

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