window onload

//two ways of executing JS code after page is loaded, use "DOMContentLoaded" when able

document.addEventListener("DOMContentLoaded", function(){
    //dom is fully loaded, but maybe waiting on images & css files
});

window.addEventListener("load", function(){
    //everything is fully loaded, don't use me if you can use DOMContentLoaded
});

window.onload = function() {
  // Some code
};

window.addEventListener("load", function(event) {
    console.log("Tutte le risorse hanno terminato il caricamento!");
});

window.onload = function() {
  // Code here
}

//use
window.onload=()=>{};

function load(argument) {
	// body...
}
window.onload = load;

window.onload = function() {
  init();
  doSomethingElse();
};