jQuery Forum

One of the core rules of functions in the $.fn namespace is that they should always return the jQuery object that they are given, unless the method is intended to return a specific value.  That's what makes jQuery unique, being able to string functions together easily.  Additionally, the behavior you're looking for can be achieved in a number of ways using closures, so it's not really worth the tradeoff IMO.

$.each() instead of $.fn.each() is what I'm talking about, you might want to take a look at the JS core function Array.every().

I usually work on a large dataset on client side, and render contents with JS templates. I stores the selection and row state right inside the JS dataset for easy referencing in templates.

You would iterate through the whole dataset to match a single property, and you would break out when some conditions are met. Like "every rows are selected" or "all messages are read", there are so many use case make use of this function.

This might not be necessary in modern browsers, just wondering if jQuery would normalise this function just by returning a boolean.

jQuery is using pure syntax iteration in its .each() and there is no difference between $.each() and $.fn.each(), just an alias and omission of the 1st argument.

Even native supported array functions takes 120X - 150X more times of syntax iterations'.

It's too much cost for this feature, I guess I will not even put .every() in my code at all.

Declaring a boolean in scope is very much enough for it.

Thanks for all the reply. :)