My JS script runs on every page, but I want it to run only on the post editor page.

function sm_validate_title() {
        echo "
        console.log('script working')
        ...code to validate title and content

add_action('admin_footer', 'sm_validate_title_client_side');

Maybe I should try a different hook? or add some condition on the callback function? I don't know really which hook would work, there are so many, and no idea also on how to check if page == post page with JS.

  • The classic editor or the block editor? Nov 16, 2022 at 13:13
  • On the right I can see "Post" and "Block" tabs, so I'm guessing it's a block editor?
    – MrFacundo
    Nov 16, 2022 at 13:58

1 Answer 1


The function get_current_screen gets the current screen object.

I used a condition inside my callback function to return a script only if the screen id == post:

if( $currentScreen->id === "post" ) {
        echo "


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