javascript - Get object property name -


इस सवाल का पहले से ही एक उत्तर है: < / p>

  • 18 उत्तर

    मेरे पास निम्न ऑब्जेक्ट हैं: 2, "4 डी": 3, "5 डी": 4, "6 डी": 5, "2 डी": 1, "2 डी": 2, "4 डी" "7 डी": 6}; फ़ंक्शन SomethingElse (obj) {this.2D = 0; This.3D = 0; This.4D = 0; This.5D = 0; this.6D = 0; This.7D = 0; के लिए (obj में var सहारा) {यह [सह] = obj [prop]; }}

    मेरे पास एक पूर्णांक है जिसमें से मैं संपत्ति प्राप्त करना चाहता हूँ something का नाम (उदाहरण के लिए, अगर मैं 2 में से गुजारें तो मुझे वापस स्ट्रिंग " p>

    सरल समाधान एक फ़ंक्शन बनाने के लिए होगा जो कुछ के सभी गुणों के लिए (... में ...) के साथ दोहराता है और देता है पहला मिलान संपत्ति या अन्य नल । 

      फ़ंक्शन खोज (मूल्य) {के लिए (कुछ में सहारा है) {if (something [prop] === value) { वापसी प्रोप;}} वापसी नल;}

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