HTMLElement.click()

The HTMLElement.click() method simulates a mouse click on an element.

When click() is used with supported elements (such as an <input>), it fires the element's click event. This event then bubbles up to elements higher in the document tree (or event chain) and fires their click events.

click()

<form>
  <input
    type="checkbox"
    id="myCheck"
    onmouseover="myFunction()"
    onclick="alert('click event occurred')" />
</form>

// On mouse-over, execute myFunction
function myFunction() {
  document.getElementById("myCheck").click();
}