expected-right-parenthesis-in-regular-expression-javascript.md

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Expected ')' in regular expression (JavaScript) | Microsoft Docs		01/18/2017	windows-client-threshold			javascript		article	VS.WebClient.Help.SCRIPT5020	JavaScript TypeScript DHTML	2087ba1d-9783-4d40-b609-e8542f579f7f	7	mikejo5000	mikejo	ghogen

Expected ')' in regular expression (JavaScript)

You attempted to create a regular expression capture, assertion, or group, but did not include the closing parenthesis. Parentheses have several purposes in regular expressions. Primarily, they are used to capture sub-expressions, to specify assertions, or to group patterns together so that the items can be treated as a single unit by *, +, ?, and so on.

To correct this error

• Add the rightmost closing parentheses.

  [!NOTE] If you want to match a single parenthesis, escape it with a backslash - \( - so that it is not interpreted as a special character by [!INCLUDEjavascript].

See Also

Regular Expression Object
Regular Expression Syntax (JavaScript)