Protocols in Objective-C -

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id और id & lt; NSObject & gt; के बीच क्या अंतर है। & lt; NSObject & gt; अनावश्यक नहीं है क्योंकि यह वस्तु इस प्रोटोकॉल के अनुरूप है।

आईडी किसी भी वर्ग का एक उदाहरण है, जरूरी नहीं कि एनएसओबीक्स्ट वर्ग से प्राप्त होता है जावा के ऑब्जेक्ट के विपरीत, एनएसओबाइजेक्ट "एक सच्चे बेस क्लास" नहीं है, जिसमें से प्रत्येक वर्ग को विरासत में मिला है तो नहीं, सभी ऑब्जेक्ट NSObject प्रोटोकॉल के अनुरूप नहीं हैं, जिसका अर्थ है & lt; NSObject & gt; बेमानी नहीं है।

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