javascript - Cannot set property 'innerHTML' of null why am I getting this error - 


<!doctype html>  <html> <head>   <meta charset="utf-8">   <meta name="viewport" content="width=device-width">   <title>js bin</title> </head>  <body>   <div class="demo">heoo</div>   <script>     var person = {       name: "john",       age: 50     };     var result = person.name;     document.getelementbyid('demo').innerhtml = result;   </script> </body> </html>

i want display person object property value div showing cant set innerhtml null . please give me answers. thank in advance.

change class="demo" id="demo"

or code to:

document.getelementsbyclassname('demo')[0].innerhtml= result;

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