javascript - Cancel click event in the mouseup event handler

Question

Writing some drag&drop code, I'd like to cancel the click events in my mouseup handler. I figured preventing default should do the trick, but the click event is still fired.

Is there a way to do this?

---

This doesn't work:

<div id="test">test</div>
<script>
$("#test").mouseup (function (e) {
  var a = 1;
  e.preventDefault();
});
$("#test").click (function (e) {
  var a = 2;
});

Answer 1

Use the event capture phase

Put an element around the element you want to cancel the click event for, and add a capture event handler to it.

var btnElm = document.querySelector('button');

btnElm.addEventListener('mouseup', function(e){
    console.log('mouseup');
    
    window.addEventListener(
        'click',
        captureClick,
        true // <-- This registeres this listener for the capture
             //     phase instead of the bubbling phase!
    ); 
});

btnElm.addEventListener('click', function(e){
    console.log('click');
});

function captureClick(e) {
    e.stopPropagation(); // Stop the click from being propagated.
    console.log('click captured');
    window.removeEventListener('click', captureClick, true); // cleanup
}

<button>Test capture click event</button>