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JavaScript Introduction to jQuery Events Intro to Events

why wouldn't I just use the on. method instead of this?

Why wouldn't I just use this

$('body').on('click', function() {
  alert('clicked');
});

instead of this:

$('body').click(function() {
  alert('clicked');
  });

2 Answers

Jesus Mendoza
Jesus Mendoza
23,289 Points

Hey Wilfredo,

With the .on() method you can specify a selector

$('body').on('click', '#button', (e) => {

});

That helps you to add click events to dinamically added elements. Let's say you have a function that adds a button depending on a selected option:

This wont work

$('#button').click((e) => {
console.log('I\'m a button');
});

But this works

$('#container').on('click', '#button', (e) => {
console.log('I\'m a button');
});

Have fun and merry christmas.

Thanks Jesus and merry Christmas as well.

If the 'on' method has advantages over the 'click' method, is there any case where I would prefer to use the latter?

ywang04
ywang04
6,762 Points

You can refer to the jQuery API documentation: http://api.jquery.com/click/ Basically, .click() is is a shortcut for .on( "click", handler ) in the first two variations. Here, the handler means event handler or call back function.