javascript click

$( "#other" ).click(function() {
  $( "#target" ).click();
});

const element = document.querySelector('element');
element.click();

document.getElementById("some_elment_id").click();

document.addEventListener('click', function(e) {
    e = e || window.event;
    var target = e.target || e.srcElement,
        text = target.textContent || target.innerText;   
}, false);

<button onclick="myFunction()">Click me</button>

<p id="demo"></p>

<script>
function myFunction() {
  document.getElementById("demo").innerHTML = "Hello World";
}
</script>

var button = document.getElementById("button");
button.click();