javascript - Click the submit button to check the values of all inputs on the page and pop up a prompt if any one is empty
phpcn_u15822017-05-19 10:17:02
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There are originally 5 inputs in the page. Clicking the "Add button" will add a new input to the page. When clicking the Submit button and any input is empty, it cannot be submitted and an alert prompt pops up. How to do this?
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Use the valid plug-in, or read the data in a loop yourself. Once it is empty, alert immediately and return false, otherwise continue.