trigger mouse down event code example

Example 1: jquery mousedown javascript

$( "#target" ).mousedown(function() {
  alert( "Handler for .mousedown() called." );
});

Example 2: javascript mouse up mouse down

<p id="myP" onmousedown="mouseDown()" onmouseup="mouseUp()">

<script>
function mouseDown() {
}

function mouseUp() {
}
</script>