javascript - Checking if writeFileSync successfully wrote the file -

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मेरे पास express.js : 

  export.save = function (अनुरोध, प्रतिक्रिया) {var file = request.body.file; Var सामग्री = request.body.content; Var सहेजा गया = गलत; अगर (fs.existsSync (फ़ाइल)) {saved = fs.writeFileSync (फ़ाइल, सामग्री, 'utf8'); } Console.log (सहेजा गया); // अपरिभाषित या गलत, कभी भी सही प्रतिक्रिया नहीं है। सरणी (सहेजा गया 200: 500, बचाया? 'बचाया': 'त्रुटि'); // 500, त्रुटि};   
 क्या  यदि (saveof === 'अपरिभाषित' प्रकार) सहेजा = सच;  एकमात्र विकल्प है? हो सकता है कि लगता है।   
 
 
 नोड.जेएस के मुताबिक कुछ भी वापस नहीं आता है।  
 अगर कुछ गलत हो जाता है तो यह एक  त्रुटि  वस्तु फेंकता है तो आपको  fs.writeFileSync (फ़ाइल, सामग्री, 'utf8');  एक  try-catch  ब्लॉक    में लिखना चाहिए।

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