JavaScript SyntaxError – Missing ) after argument list

This JavaScript exception missing ) after argument list occurs if there is an error in function calls. This could be a typing mistake, a missing operator, or an unescaped string.

Message:

SyntaxError: Expected ')' (Edge)
SyntaxError: missing ) after argument list (Firefox)

Error Type:

SyntaxError

Cause of Error: Somewhere in the code, there is an error with function calls. This could be either a typing mistake, a missing operator, or an unescaped string.

Example 1: In this example, there is a missing operator in string concatenation, So the error has occurred.

Javascript

let str1 = 'This is ';
let str2 = 'GeeksforGeeks';
console.log(str1 str2);

Output(In console):

SyntaxError: missing ) after argument list

Example 2: In this example, there is an unescaped string, So the error has occurred.

Javascript

let str1 = 'This is ';
let str2 = 'GeeksforGeeks';
console.log(str1 \str2);

Output(in console):

SyntaxError: missing ) after argument list