javascript - How does the Arrow function work in ECMAScript6 -

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मैं गणितीय कार्यक्रम पर काम कर रहा हूं और ECMAScript6 एरो < / code>। कौन सा Lambda अभिव्यक्ति C # के समान है। 

  चलो वर्ग = y = & gt; Y y; console.log (वर्ग (4));   
 मैंने  तीर  फ़ंक्शन का उपयोग करने के बाद अपना लक्ष्य हासिल किया लेकिन अभी भी भ्रमित कैसे  तीर  फ़ंक्शन कार्य करता है।  
 क्या यह  लम्बाडा  अभिव्यक्ति की तरह काम करता है.क्या कोई मुझे उस पर मार्गदर्शन कर सकता है।  
 धन्यवाद   
 
 
 यह अनिवार्य रूप से ऐसा कर रहा है:  
  var वर्ग = समारोह (y) {return y * y; } .bind (this);   
 जहां  यह  बाहरी गुंजाइश के लिए बाध्य है।

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