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Re:Can You Afford It? Real-World Web Performance Budgets by christophilus on Saturday October 28, 2017 @10:35AM (#15575258)
Yes, but from the end-user perspective, it's nice to not have to do a round-trip to find out that you entered something wrong.
Re:Can You Afford It? Real-World Web Performance Budgets by TeMPOraL on Sunday October 29, 2017 @07:03AM (#15578863)
Fair enough.

Still, validating a form client-side doesn't require a JavaScript framework; it would only require the server to send small snippets of JS for each field with the form.