Hook to event on select a page

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I used a "Page Selector Widget" at a block editing ui. I wonder if there is a way to run a javascript function when user select a page? I want to update something based on the page user selected via jQuery.
Or maybe run the javascript method when user click on block editing UI "Save" button?

 
shahroq replied on at Permalink Best Answer Reply
shahroq
Herkool replied on at Permalink Reply
Thank you. Also is there any way to fire a js method when user click on "Save" button?
Herkool replied on at Permalink Reply
Also is there any event when user clera the selected page?