javascript - How to monitor the change event of input[type="file"] generated in the future?

Question

It’s not easy to use the delegate method, I don’t know why

$(selector).delegate(childSelector, 'change', function () {}

Answer 1

$(selector).on(event,subselector,function) Dynamically generated DOM event binding uses on

Answer 2

For jquery, it is usually bound with on.

Answer 3

The event will be triggered when the text box loses focus