one listener for multiple events code example

Example 1: window.addeventlistener multiple events

"mousemove touchmove".split(" ").forEach(function(e){
      window.addEventListener(e,mouseMoveHandler,false);
    });

Example 2: adding event listener to multiple elements

document.querySelectorAll('.some-class').forEach(item => {
  item.addEventListener('click', event => {
    //handle click
  })
})