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https://stackoverflow.com › questions › 69165892

How to throw an exception with a status code? - Stack Overflow

const exception = new Error(); exception.name = "CustomError"; exception.response = { status: 401, data: { detail: "This is a custom error", }, }; throw exception; } catch (err) { //console error with status... console.log(err.response); }

https://developer.mozilla.org › en-US › docs › Web › JavaScript › Reference › Statements › throw

throw - JavaScript | MDN - MDN Web Docs

The throw statement throws a user-defined exception. Execution of the current function will stop (the statements after throw won't be executed), and control will be passed to the first catch block in the call stack. If no catch block exists among caller functions, the program will terminate.

https://developer.mozilla.org › fr › docs › Web › JavaScript › Reference › Statements › throw

throw - JavaScript | MDN - MDN Web Docs

Propager une exception. L'instruction throw peut être utilisée pour transmettre une exception qui aurait été interceptée avec catch. Dans l'exemple suivant, on intercepte une exception avec une valeur numérique et on propage l'exception si la valeur est supérieure à 50.

https://developer.mozilla.org › fr › docs › Web › JavaScript › Reference › Statements › try...catch

try...catch - JavaScript | MDN - MDN Web Docs

Lorsqu'une exception est levée dans le bloc try, exception_var (par exemple le e dans « catch (e) ») contient la valeur définie par l'instruction throw. Cet identifiant peut être utilisé pour accéder aux propriétés de l'objet et ainsi obtenir des informations sur l'exception qui a eu lieu.

https://www.w3schools.com › js › js_errors.asp

JavaScript Errors Try Catch Throw - W3Schools

The try statement defines a code block to run (to try). The catch statement defines a code block to handle any error. The finally statement defines a code block to run regardless of the result. The throw statement defines a custom error.

https://www.javascripttutorial.net › javascript-throw-exception

JavaScript throw Exception

The throw statement allows you to throw an exception. Here’s the syntax of the throw statement: throw expression; Code language: JavaScript (javascript) In this syntax, the expression specifies the value of the exception. Typically, you’ll use a new instance of the Error class or its subclasses.

https://www.w3schools.com › jsref › jsref_throw.asp

JavaScript throw Statement - W3Schools

The throw statement allows you to create a custom error. The throw statement throws (generates) an error. The technical term for this is: The throw statement throws an exception. The exception can be a JavaScript String, a Number, a Boolean or an Object:

https://javascript.info › try-catch

Error handling, "try...catch" - The Modern JavaScript Tutorial

Usually, a script “dies” (immediately stops) in case of an error, printing it to console. But there’s a syntax construct try...catch that allows us to “catch” errors so the script can, instead of dying, do something more reasonable.

https://stackoverflow.com › questions › 783818

How do I create a custom Error in JavaScript? - Stack Overflow

router.post('/api/auth', async (req, res) => { try { const isLogged = await User.logIn(req.body.username, req.body.password); if (!isLogged) { throw new IncorrectCredentials('Incorrect username or password'); } else { return res.status(200).send({ token, }); } } catch (err) { const error = HttpError.fromObject(err); return res.status(error ...

How do I create a custom Error in JavaScript? - Stack Overflow

https://rollbar.com › guides › javascript › how-to-throw-exceptions-in-javascript

How to Throw Exceptions in JavaScript - Rollbar

In JavaScript, all exceptions are simply objects. While the majority of exceptions are implementations of the global Error class, any old object can be thrown. With this in mind, there are two ways to throw an exception: directly via an Error object, and through a custom object.