Redirecting after form submission with user input in the URL

Question

I need to have a form that when filled out will create a variable and then goto a url with that variable in the url.

Something like this (but that works) :)

Answer 1

Different from 1st. No form needed, add an attribute named 'id' for the textfield,then defined a javascript function to retrieve the value of textfield,then do the jump, Hope usefully.

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