javascript - Counting number of objects within a field of mongodb -

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  console.log (game.game प्रश्न);

उपरोक्त कोड आउटपुट: 

  [ऑब्जेक्ट, ऑब्जेक्ट, ऑब्जेक्ट]।

मैं किसी तरह वस्तुओं की संख्या की गणना करना चाहता हूं। जब मैं कोशिश करता हूं 

  console.log (game.gameQuestions.count ());

कंसोल आउटपुट: 

  डेप से अपवाद को पुन: कंप्यूट फ़ंक्शन: प्रकार एरर: अपरिभाषित फ़ंक्शन नहीं है

इसके अतिरिक्त अगर मैं कोशिश करता हूं: 

  console.log (game.gameQuestions.length ());

कंसोल आउटपुट: 

  डेप से अपवाद को पुन: कंप्यूट फ़ंक्शन: प्रकार एरर: संख्या फ़ंक्शन नहीं है

कैसे क्या मैं किसी ऑब्जेक्ट के भीतर ऑब्जेक्ट्स की संख्या की गणना करता हूं?

माँगोडब से एक लाया हुआ दस्तावेज़ सिर्फ एक जावास्क्रिप्ट ऑब्जेक्ट है किसी भी जादू के बिना लागू game.game प्रश्न एक सरणी है, इसलिए इसमें एक संपत्ति होगी लंबाई एक सकारात्मक पूर्णांक है, जो आपकी पिछली त्रुटि बताती है। यह काम करना चाहिए: 

  console.log (game.gameQuestions.length);

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