throw-statement-javascript.md

title	ms.custom	ms.date	ms.prod	ms.reviewer	ms.suite	ms.technology	ms.tgt_pltfrm	ms.topic	f1_keywords	dev_langs	helpviewer_keywords	ms.assetid	caps.latest.revision	author	ms.author	manager
throw Statement (JavaScript) | Microsoft Docs		01/18/2017	windows-client-threshold			devlang-javascript		language-reference	throw_JavaScriptKeyword	JavaScript TypeScript DHTML	error handling, throw statement throw statement	75cbade0-fb81-4ffe-b187-b71be380bb05	14	mikejo5000	mikejo	ghogen

throw Statement (JavaScript)

Generates an error condition that can be handled by a try...catch...finally statement.

Syntax

throw exception   

Remarks

The required exception argument can be any expression.

The following example throws an error inside a try block, and it is caught in the catch block.

try {  
        throw new Error(200, "x equals zero");  
}  
catch (e) {  
    document.write(e.message);  
}  
  
// Output: x equals zero.  
  

Requirements

[!INCLUDEjsv5]

See Also

try...catch...finally Statement
Error Object