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JavaScript jQuery Basics (2014) Creating a Spoiler Revealer Perform: Part 2

Posted by Javid Abbasov
Javid Abbasov
9,243 Points

I didn't got, why we use $(".spoiler span") instead of $(" span")?

I didn't got, why we use $(".spoiler span") instead of $(" span")? or why dont we use $(".spoiler") instead of $(".spoiler span") ?

1 Answer

Matt F.
Matt F.
9,518 Points
Matt F.
Matt F.
9,518 Points

Hi Javid,

Spoiler alongside span is simply more selective - if you had multiple spans on the page, this would make it so the only spand that is being affected is the one with the class of spoiler.

Similarly, if you later decided to wrap the span along with information that should not be affected by the jQuery, inside a div with a class of spoiler, it would be unintentionally affected by the jQuery.

Even if none of those cases exist in the current code, it is always better to be more selective so you do not have to fix a bug that occurs when expanding the code base.