I always romoving ‘current’ class of all siblings then add ‘current’ class to my clicked one. I want to know will it be faster only removing ‘current’ class of which has ‘current’.seems to be a simple question, but I really want to know.
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I always romoving ‘current’ class of all siblings then add ‘current’ class to my clicked one. I want to know will it be faster only removing ‘current’ class of which has ‘current’.seems to be a simple question, but I really want to know.
Yes, filtering the query to a smaller set of elements will perform faster, because there are less elements to check.
In modern browsers, jQuery will use native methods to query the DOM, so adding the selector has a negligible performance impact.