force javascript EventListener to execute once? [closed]

Answer 1

var clickFunction = function (event) {
    //do some stuff here
    window.removeEventListener('click',clickFunction, false );

};
window.addEventListener("click", clickFunction, false);

This will let you fire the clickFunction once, as the magic of closure let the removeEventListener find the clickFunction.

No need to use a library just to get something simple done.