在 JavaScript 中使用点击触发器的问题

Question

I used a trigger because the "click" command was not recognized in JavaScript, but it does not work.

document.querySelector("#size > option:nth-child(2)").click();

1. $("#size > option:nth-child(2)").trigger("click") or $("#size > option:nth-child(2)").trigger("change")

2. $(document).on("click","#size > option:nth-child(2)", function(){ return $(this).val(); });

Both 1 and 2 don't work. Is there a solution??

Answer 1

In JS you can use below code for click event

<input type="checkbox" id="myCheck" onmouseover="myFunction()">

<script>
// On mouse-over, execute myFunction
function myFunction() {
  document.getElementById("myCheck").click(); // Click on the checkbox
}
</script>

If you want to use Jquery then for Jquery you can use below code

<input type="checkbox" id="myCheck" onmouseover="myFunction()">
    
    <script>
  $( "#myCheck" ).click(function() {
  alert( "Handler for .click() called." );
});
    </script>