Make your own error types!
- Compatible Node & browsers
instanceofsupporterror.name&error.stacksupport- compatible with CSP (i.e. no
eval())
Node & Browserify/Webpack
Installation of the npm package:
> npm install --save make-error
Then require the package:
var makeError = require('make-error');You can directly use the build provided at unpkg.com:
<script src="https://unpkg.com/make-error@1/dist/make-error.js"></script>var CustomError = makeError('CustomError')
// Parameters are forwarded to the super class (here Error).
throw new CustomError('a message')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()
}var SpecializedError = makeError('SpecializedError', CustomError);
throw new SpecializedError(42);Best for ES2015+.
import {BaseError} from 'make-error'
class CustomError extends BaseError {
constructor () {
super('custom error message')
}
}- make-error-cause: Make your own error types, with a cause!
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.
ISC © Julien Fontanet