do something before confirm dialog pops up

Question

$('.lorem').on('click', function(){
    $(this).hide();
    if(prompt('DO SOMETHING') != null) {console.log('something');}
});

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class='lorem'>lorem</div>

So I firstly want to hide the div and then pop up the confirm dialog. Is it possible?

Answer 1

Use animation frames to run code before the next paint.

window.requestAnimationFrame()

$('.lorem').on('click', function(){
    // The browser will paint async not sync, so the div may still be visible
    // even after this line
    $(this).hide();
    // when the browser is ready to paint the div off screen the callback will fire
    window.requestAnimationFrame(() => { 
        if (prompt('DO SOMETHING') != null) {
            console.log('something');
        }
    });
});

note: You may have to do nested animation frames as browsers tend to implement request animation frame differently.

requestAnimationFrame(() => requestAnimationFrame(() => {
    ...
}));