event listeners in functions javascript code example

Example 1: javascript pass parameter to event listener

var someEventHander=function(){
	console.log(event,param1,param2);
}
//add listener
document.getElementById("someid").addEventListener('click',someEventHander.bind(event,param1,param2));

Example 2: javascript event listener

element.addEventListener("click", function(){ 
   element.innerText = "something"; 
});