window.removeEventListener code example
Example 1: javascript remove event listener
var someEventHander=function(event){
console.log("do something");
}
document.getElementById("someid").addEventListener('click',someEventHander);
document.getElementById("someid").removeEventListener('click',someEventHander);
Example 2: removeeventlistener
element.removeEventListener("mousedown", handleMouseDown)
Example 3: removeEventListener
target.removeEventListener(type, listener[, options]);
target.removeEventListener(type, listener[, useCapture]);