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Javid Abbasov
9,243 Points$(this).remove(); I didnt understand
I didnt understand why we use "this" in $(this).remove(); what does it exactly do? and when should we use it?
2 Answers
jcorum
71,830 PointsThink of this as a pronoun meaning "me". Then $(this) means "select me". Here "me" is the button that was clicked in line 9 of app.js. In short, this is a way to refer to the current button.
It might help, with that in mind, to re-read what Andrew said at 2:11 in the video: Because you're clicking on a particular button, there's a special variable called this, which means this object that something's happening to. So, in this instance a object, a button, a particular button is being clicked. Not all buttons are being clicked. Just this particular one.
As Andrew also pointed out, if you had tried to select the button with $(button) and there were more than one button you would be selecting all of them, rather than just the current button.
jason chan
31,009 PointsThis is hard concept to understand. basically this means this. When you click this button. You are refering to this button you clicked.
It's literally means to point at this something.