LessonAbout 7 minLesson languageEnglishதமிழ் (Tamil)हिन्दी (Hindi)മലയാളം (Malayalam)తెలుగు (Telugu)ಕನ್ನಡ (Kannada)বাংলা (Bengali)मराठी (Marathi)ગુજરાતી (Gujarati)ਪੰਜਾਬੀ (Punjabi)Chapter 12 · Lesson 5 of 605. useOptimistic: show it straight awayShow a change at once, before the slow save finishes, with useOptimistic, then show the real result when it arrives.