# About the iOS category

**URL:** <https://forums.kodeco.com/t/about-the-ios-category/32>\
**Category:** iOS\
**Created:** [February 19, 2016, 4:46pm UTC](https://forums.kodeco.com/t/about-the-ios-category/32 "2016-02-19T16:46:53Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![rwenderlich](https://assets.chunter.kodeco.com/user_avatar/forums.kodeco.com/rwenderlich/32/108604_2.png) [@rwenderlich](https://forums.kodeco.com/u/rwenderlich)\
**Post date:** [February 19, 2016, 4:46pm UTC](https://forums.kodeco.com/t/about-the-ios-category/32/1 "2016-02-19T16:46:53Z")

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This category is for discussion on iOS development.

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**Author:** ![jamielanger](https://assets.chunter.kodeco.com/user_avatar/forums.kodeco.com/jamielanger/32/81494_2.png) [@jamielanger](https://forums.kodeco.com/u/jamielanger)\
**Post date:** [February 9, 2020, 5:52am UTC](https://forums.kodeco.com/t/about-the-ios-category/32/2 "2020-02-09T05:52:06Z")

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Categories and augmentations permit you to broaden the usefulness of existing classes without subclassing (acquire nothing) adding usefulness to a current class, even to one for which you don’t have the source.

A category permit you to include (just) techniques to a class by proclaiming them in an interface record (.h) and characterizing them in an execution document (.m), like in an essential Objective-C class. Unfortunately a classification can’t pronounce extra occasion variable for a class.

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**Author:** ![anthony554](https://s3.amazonaws.com/cdn.raywenderlich.com/community/forum-assets/noun-game-ghost-878668.png) [@anthony554](https://forums.kodeco.com/u/anthony554)\
**Post date:** [February 26, 2024, 10:44am UTC](https://forums.kodeco.com/t/about-the-ios-category/32/3 "2024-02-26T10:44:12Z")

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