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POWhat is the easiest way to detect if at least one field has been changed on an HTML form?
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I have an HTML form with over 20 fields. I also have a couple of links on the page which will lead the user away from the form... potentially without having saved any changes. I want to warn (JS confirm) the user onClick of these links if any of the form fields have changed, but I don't want to create a huge switch statement that I then need to maintain as I add new fields to the form. I know how to create a long list of 'if' statements in Javascript, naming each of the fields and checking each value, but I don't want to do that if I can get away with it. What's the easiest way to check if the user has changed at least one of the field values?
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What is the easiest way to detect if at least one field has been changed on an HTML form?
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