Home›Software design patterns›observer pattern🌐EnglishEnglishDeutschEspañolFrançaisItalianoNederlandsPolskiPortuguêsSvenskaTürkçeРусскийالعربيةفارسیไทย한국어中文日本語EntityQ818562· pop 27· linked from 143 articlesobserver patterndesign patternWikidata factsShow 2 more factsStack Exchange tagstackoverflow.com/tags/observer-patternCommons categoryObserver patternSources (2)wikidata.orgpl.wikipedia.orgvia Wikidata · CC0Available in 24 languagesEspañolFrançaisDeutsch中文日本語РусскийPortuguêsItalianoالعربيةBulgarianConnectionspublish–subscribe patternEntityentity component systemEntityCategoriesSoftware design patterns