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Editorial Team
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Asked: 2026-05-27T13:30:20+00:00

So I’m trying to set up a function that listens for IF AND ONLY

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So I’m trying to set up a function that listens for IF AND ONLY IF 3 special items are “checked”.

So far I have a list with 9 items, and when the 3 “S” (for special) have the clicked class, the background will change blue, and then change back if any one of the 3 are un-clicked.

What I want to know is if there’s a way to make it so that the condition is met (blue background) IF AND ONLY IF the three “S” are checked and nothing else is checked.

See demo here: http://jsfiddle.net/stursby/V5Hee/

Any help would be great,

Thanks.

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1 Answer

  1. Editorial Team

    Yep, add a condition that make sure there are only 3 clicked, then check that they are the ones you want.

    $('#grid li.clicked').size() == 3

    http://jsfiddle.net/V5Hee/2/

    UPDATE

    Using .length rather than .size() as pointed out as better pracitce:

    $('#grid li.clicked').length == 3

    http://jsfiddle.net/V5Hee/3/

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