JavaScript SyntaxError – Illegal character
This JavaScript exception illegal character occurs if there is an invalid or unexpected token that doesn’t belong there in the code.
Message:
SyntaxError: Invalid character (Edge) SyntaxError: illegal character (Firefox) SyntaxError: Invalid or unexpected token (Chrome)
Error Type:
SyntaxError
Cause of Error: There is an invalid or unexpected token that doesn’t belong there in the code. Check the code for mismatches like a minus sign ( – ) and a dash ( – ) or simple quotes ( ” ) vs non-standard quotation marks ( “ ).
Example 1: In this example, there is not any mismatch, So the error has not occurred.
HTML
<!DOCTYPE html> <html> <head> <title>Syntax Error</title> </head> <body> <script> // Valid token var GFG_colors = ['#002', '#353', '#665']; document.write(GFG_colors) </script> </body> </html> |
Output:
#002,#353,#665
Example 2: In this example, there is a token mismatch, So the error has occurred.
HTML
<!DOCTYPE html> <html> <head> <title>Syntax Error</title> </head> <body> <script> // Invalid Token var GFG_colors = ['#002', '#353', '#665']; document.write(GFG_colors) </script> </body> </html> |
Output(in console):
SyntaxError: Invalid or unexpected token
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