Anonymous functions can also be used as handlers added in a loop. This makes the code more compact and saves us from having to come up with a name for a function that is only used in one place.
Let's add anonymous handlers to elements:
let elems = document.querySelectorAll('p');
for (let elem of elems) {
elem.addEventListener('click', function() {
console.log(this.textContent);
});
}
Given the following code:
<div>1</div>
<div>2</div>
<div>3</div>
<div>4</div>
<div>5</div>
let divs = document.querySelectorAll('div');
for (let div of divs) {
div.addEventListener('click', func);
}
function func() {
this.textContent++;
}
Make the handler function anonymous.