common underscore functions

common-underscore-functions.md

pure js	jquery	angular	_.js	_.php	pure php	note
-	$.map	-	_.map	->map	array_map	-
-	-	-	_.filter	->filter	array_filter	-
-	-	-	_.pick	->pick	array_filter	filter object (whitelisted keys)
-	-	-	_.omit		-	filter object (blacklisted keys)
-	-	-	_.reduce	->reduce	-	-
-	-	-	_.chain	Underscore::from	-	-
-	-	-	_.value	->value	-	-
-	-	-	_.pluck		-	-
-	-	-	_.findWhere	->find	-	-
-	-	-	_.first	->head	-	-
-	-	-	_.negate		-	-
-	-	-	_.each	->invoke	-	-
-	$.each	angular.forEach	_.invoke	->invoke	-	-
-	-	-	_.result	-	-	-
-	$.extend	-	_.extend	->extend	array_merge	extend object
arr.concat	$.merge	-	_.chain(a).concat(b).value()	->merge	array_merge	merge arrays
arr.join	-	-	_.chain(a).join().value()		implode	concat arrays to string