npm package discovery and stats viewer.

Discover Tips

  • General search

    [free text search, go nuts!]

  • Package details

    pkg:[package-name]

  • User packages

    @[username]

Sponsor

Optimize Toolset

I’ve always been into building performant and accessible sites, but lately I’ve been taking it extremely seriously. So much so that I’ve been building a tool to help me optimize and monitor the sites that I build to make sure that I’m making an attempt to offer the best experience to those who visit them. If you’re into performant, accessible and SEO friendly sites, you might like it too! You can check it out at Optimize Toolset.

About

Hi, 👋, I’m Ryan Hefner  and I built this site for me, and you! The goal of this site was to provide an easy way for me to check the stats on my npm packages, both for prioritizing issues and updates, and to give me a little kick in the pants to keep up on stuff.

As I was building it, I realized that I was actually using the tool to build the tool, and figured I might as well put this out there and hopefully others will find it to be a fast and useful way to search and browse npm packages as I have.

If you’re interested in other things I’m working on, follow me on Twitter or check out the open source projects I’ve been publishing on GitHub.

I am also working on a Twitter bot for this site to tweet the most popular, newest, random packages from npm. Please follow that account now and it will start sending out packages soon–ish.

Open Software & Tools

This site wouldn’t be possible without the immense generosity and tireless efforts from the people who make contributions to the world and share their work via open source initiatives. Thank you 🙏

© 2024 – Pkg Stats / Ryan Hefner

make-error

v1.3.6

Published

Make your own error types!

Downloads

108,410,683

Readme

make-error

Package Version Build Status PackagePhobia Latest Commit

Make your own error types!

Features

  • Compatible Node & browsers
  • instanceof support
  • error.name & error.stack support
  • compatible with CSP (i.e. no eval())

Installation

Node & Browserify/Webpack

Installation of the npm package:

> npm install --save make-error

Then require the package:

var makeError = require("make-error");

Browser

You can directly use the build provided at unpkg.com:

<script src="https://unpkg.com/make-error@1/dist/make-error.js"></script>

Usage

Basic named error

var CustomError = makeError("CustomError");

// Parameters are forwarded to the super class (here Error).
throw new CustomError("a message");

Advanced error class

function CustomError(customValue) {
  CustomError.super.call(this, "custom error message");

  this.customValue = customValue;
}
makeError(CustomError);

// Feel free to extend the prototype.
CustomError.prototype.myMethod = function CustomError$myMethod() {
  console.log("CustomError.myMethod (%s, %s)", this.code, this.message);
};

//-----

try {
  throw new CustomError(42);
} catch (error) {
  error.myMethod();
}

Specialized error

var SpecializedError = makeError("SpecializedError", CustomError);

throw new SpecializedError(42);

Inheritance

Best for ES2015+.

import { BaseError } from "make-error";

class CustomError extends BaseError {
  constructor() {
    super("custom error message");
  }
}

Related

Contributions

Contributions are very welcomed, either on the documentation or on the code.

You may:

  • report any issue you've encountered;
  • fork and create a pull request.

License

ISC © Julien Fontanet