https://javascript.info › custom-errors
Custom errors, extending Error - The Modern JavaScript TutorialCustom errors, extending Error. When we develop something, we often need our own error classes to reflect specific things that may go wrong in our tasks. For errors in network operations we may need HttpError, for database operations DbError, for searching operations NotFoundError and so on.
https://stackoverflow.com › questions › 783818
How do I create a custom Error in JavaScript? - Stack OverflowIf you throw with Error, you can't have "Uncaught BadError: bad", so you'll have to remove the custom error (sadly). If you throw an object, it looks kind of off, and the final one is just an average error. This method creates an error with a custom name while preserving stack tracing:
https://www.geeksforgeeks.org › how-to-create-custom-errors-in-javascript
How to create custom errors in JavaScript - GeeksforGeeksJavascript handles a predefined set of errors by itself but if you want to create your own error handling mechanism you can do that with custom errors functionality available in javascript. We make use of the OOPS concept called an inheritance to implement custom errors.
https://adamcoster.com › blog › javascript-custom-errors
Custom JavaScript/Typescript Errors: Why and how to use themThis post includes a short discussion about how and why to create custom JavaScript errors, plus JavaScript (and Typescript) templates and Visual Studio Code snippets to make it easy to create your own.
https://dev.to › muszynov › customizing-errors-in-javascript-4jm
Customizing Errors in JavaScript - DEV CommunityJavaScript provides the Error class as a foundation for creating and customizing error objects, allowing developers to create tailored error messages, add additional information, and handle exceptions effectively. In this article, I would like to shou you how the Error class can be utilized to enhance error handling in JavaScript applications.
https://dev.to › manuartero › custom-exceptions-in-modern-js-ts-2in9
Custom Exceptions in modern js / ts - DEV CommunityJust a function that creates a regular Error. Define the name (remember, this property is used to differentiate among Errors). Define any extra properties. function AuthError(msg) { const err = Error(msg); err.name = 'AuthError'; err.userId = getCurrentUserId(); return err; } Raising it:
https://devcamp.com › ... › guides › how-to-create-a-custom-error-class-javascript
How to Create a Custom Error Class in JavaScript - DevCampHow to Create a Custom Error Class in JavaScript. In the last guide, we walked through a basic introduction to the syntax for error management in JavaScript, and in this guide I want to extend that knowledge. Guide Tasks.
https://www.robinwieruch.de › javascript-custom-error
Custom Errors in JavaScript - Robin WieruchLearn about custom errors in JavaScript, how to create a new custom error and how to extend errors from third party libraries and APIs ...
https://dev.to › ... › a-practical-example-of-how-to-use-custom-errors-in-javascript-1175
A practical example of how to use custom Errors in JavaScriptHow to create a custom Error. But before we dwell in how to change our code above, we should explain first how to create a custom Error. There are many ways to do it, one way to do it is just to create an instance of the Error class and change the name, for example:
https://www.w3docs.com › learn-javascript › custom-errors-extending-error.html
JavaScript: Custom Errors and Exception Handling - W3docsJavaScript allows developers to create their own custom error types by extending the built-in Error class. This capability enables more detailed error handling and better management of exceptions in complex applications. Here, we’ll explore how to define and use custom errors through practical examples.
