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I have been working on my launch page at launchrock. I need a code script that only accepts college emails .edu emails in the text box. I just want to add this functionality. They have a code editor in 3 different panels for html, css, and javascript.
You'd be better off doing this with PHP or other server side lingo. Presumably there is one already to process the form? In that case, you just add a regex rule that only accepts .edu in the email address.
I to a look at the pre-made code that created and I surely would a javascript regex rule. Because their could doesn't contain php from my knowledge.