Multiple functions can be attached to one element at once. Let's look at an example. Let's have a button:
<input id="button" type="submit">
Let's say we have two functions:
function func1() {
console.log('1');
}
function func2() {
console.log('2');
}
Get a link to our button into a variable:
let button = document.querySelector('#button');
And now let's bind both the first and second functions to our button as click handlers:
button.addEventListener('click', func1);
button.addEventListener('click', func2);
Given a paragraph:
<p id="elem">text</p>
Given the following functions:
function func1() {
console.log('1');
}
function func2() {
console.log('2');
}
function func3() {
console.log('3');
}
Bind all these functions to our paragraph.