javascript - Very simple js calculator doesn't work -

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मैंने क्या किया?

HTML

< पूर्व> & lt; फ़ॉर्म का नाम = "कैल्क" & gt; & Lt; BR & gt; इनपुट प्रकार = "टेक्स्ट" नाम = "1" आकार = "20" & gt; * & lt; इनपुट प्रकार = "टेक्स्ट" नाम = "2" आकार = "20" & gt; = & lt; इनपुट प्रकार = "टेक्स्ट" नाम = "योग" आकार = "20" & gt; & Lt; BR & gt; & Lt; इनपुट प्रकार = "बटन" नाम = "कैल्क" मान = "गणना" onClick = "calcsum ()" & gt; & Lt; / प्रपत्र & gt;

स्क्रिप्ट 

  फ़ंक्शन calcsum () {sum.value = 1.value * 2.value; }

आपको उपयोग करना चाहिए

प्रयास करें: 

  फ़ंक्शन कैल्सेसम () {document.getElementsByName ("sum") [0] .value = document.getElementsByName ("1") [0] .value * document.getElementsByName ( "2") [0] .Value; }


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