CSS: Skip falsy values in addClass( array ), compress code
#5003
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This change makes jQuery skip falsy values in `addClass( array )` & `removeClass( array )` instead of stopping iteration when the first falsy value is detected. This makes code like: ```js elem.addClass( [ "a", "", "b" ] ); ``` add both the `a` & `b` classes. The code was also optimized for size a bit. Fixes jquerygh-4998
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I like the change to use each.
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This change makes jQuery skip falsy values in `addClass( array )` & `removeClass( array )` instead of stopping iteration when the first falsy value is detected. This makes code like: ```js elem.addClass( [ "a", "", "b" ] ); ``` add both the `a` & `b` classes. The code was also optimized for size a bit so it doesn't increase the minified gzipped size. Fixes gh-4998 Closes gh-5003 (partially cherry picked from commit a338b40)
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Summary
This change makes jQuery skip falsy values in
addClass( array )&
removeClass( array )instead of stopping iteration when the first falsyvalue is detected. This makes code like:
add both the
a&bclasses.The code was also optimized for size a bit.
Fixes gh-4998
+0 bytes thanks to the optimizations 🎉; initially it was at +8 bytes. In
toggleClasswe now also avoid needlessly recomputing the array of classes.I'm yet to check how much can these optimizations be backported to 3.x-stable as we have some deprecated
toggleClasslogic there but I'll check after this lands.Checklist
If needed, a docs issue/PR was created at https://github.com/jquery/api.jquery.com