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JavaScript SyntaxError – Missing variable name
  • Last Updated : 24 Jul, 2020

This JavaScript exception missing variable name occurs frequently If name is missing or the comma is wrongly placed. There may be a typing mistake.

Message:

SyntaxError: missing variable name (Firefox)
SyntaxError: Unexpected token = (Chrome)

Error Type:

SyntaxError

Cause of Error: There might be a variable missing a name. This is because of syntax errors in the code. Comma might be misplaced somewhere in code.

Example 1: The variable name is missing, So the error has occurred.



HTML




<!DOCTYPE html>
<html>
<head>
   <title>Syntax Error</title>
</head>
<body>
    <script>
      var = "This is GeeksforGeeks";
    </script>
</body>
</html>

Output(In console):

SyntaxError: Unexpected token =

Example 2: The comma(, ) is used in place of “;”, So the error has occurred.

HTML




<!DOCTYPE html>
<html>
<head>
    <title>Syntax Error</title>
</head>
<body>
    <script>
    var var1 = "This is ",
    var var2 = "GFG";
    </script>
</body>
</html>

Output(In console):

SyntaxError: Unexpected token 'var'
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