JavaScript SyntaxError – Identifier starts immediately after numeric literal
This JavaScript exception identifier starts immediately after numeric literal occurs if an identifier starts with a number.
Message:
SyntaxError: Unexpected identifier after numeric literal
(Edge)
SyntaxError: identifier starts immediately after numeric
literal (Firefox)
SyntaxError: Unexpected number (Chrome)
Error Type:
SyntaxError
Cause of Error: Any JavaScript identifier should start with a letter, underscore (_), or a dollar sign ($). If they start with a digit(0-9), it will cause an error.
Example 1: In this example, there is a valid identifier, So the error has not occurred.
HTML
<!DOCTYPE html> <html> <head> <title>Syntax Error</title> </head> <body> <script> // valid identifier var GFG = 'This is GeeksforGeeks'; document.write(GFG) </script> </body> </html> |
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Output:
This is GeeksforGeeks
Example 2: In this example, there is an identifier starting with a digit(1), So the error has occurred.
HTML
<!DOCTYPE html> <html> <head> <title>Syntax Error</title> </head> <body> <script> // Invalid identifier var 1GFG = 'This is GeeksForGeeks'; document.write(1GFG) </script> </body> </html> |
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Output(in console):
SyntaxError: Invalid or unexpected token
