CODEWITHSUNDEEP
jquery
mb52089
mb52089

Reputation: 872

check a form to see if nothing has changed

In the app I'm working on, the first thing a user needs to do after authenticating is to enter a name in an input form and save it.

If the user tries to leave the form without having entered something and saved it, I would like to be able to detect this behavior and prevent it, possibly with an alert that reminds them they must first save the form (and not give them a choice).

I know how to use jquery .change() to check if the contents of an input box have changed, but I don't know how to check to see if nothing has changed.

Upvotes: 0

Views: 771

Answers (1)

Adriano Carneiro
Adriano Carneiro

Reputation: 58595

You have to store the initial state of each input element and then test for it.

I've written a jsfiddle that does that for checkboxes, but you'll get the point.

Upvotes: 2

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