cant call the event handler on a seperate page code example

Example 1: javascript onclick get event

<div onclick="doSomething(event,this)"></div>
<script>
     function doSomething(e,el){
         e = e || window.event;
         console.log(e); //will be the event
         console.log(el); //we be the dom element 
     }
</script>

Example 2: onclick on non button

var ele = document.getElementById('x');
if(typeof ele.click == 'function') {
  ele.click()
} else if(typeof ele.onclick == 'function') {
  ele.onclick()
}