Question

$('[role="button"]').click(function () {
            myMethod();
        });

I know that on click on something it calls myMethod(), but on click on what?

What does role mean?

Is this button?

<input type="button" ... />

What is: [role="button"] ?

Answer 1

It is an attribute equals selector. $('[role="button"]') would select all elements that has attribute role set to button.

For ex:
All below three will be selected when you do $('[role="button"]')

<div role="button" ></div>
<p role="button" ></p>
<button role="button"></button>

But this will not

<input type="button">