is-typeof-error

Check that given value is any type of error and instanceof Error.

Install

npm i is-typeof-error --save

Usage

For more use-cases see the tests

const isTypeofError = require('is-typeof-error')

isTypeofError

Check that val is error.

Params

• val {Error}
• returns {Boolean}

Example

const isTypeofError = require('is-typeof-error')
const PluginError = require('plugin-error')
const KindError = require('kind-error')

const CustomClass = function () {}
CustomClass.prototype.foo = function () {}

isTypeofError(new TypeError('test'))           // => true
isTypeofError(new KindError('test'))           // => true
isTypeofError(new SyntaxError('test'))         // => true
isTypeofError(new PluginError('test', 'msg'))  // => true

isTypeofError(new CustomClass('test'))         // => false
isTypeofError(new Object({a: 'b'}))            // => false
isTypeofError(new RegExp('test'))              // => false
isTypeofError(Object.create({a: 'b'}))         // => false
isTypeofError(/regex/)                         // => false
isTypeofError({a: 'b'})                        // => false

Related

• error-base: Create custom Error classes. | homepage
• is-kindof: Check type of given javascript value. Support promises, generators, streams, and native types… more | homepage
• kind-error: Base class for easily creating meaningful and quiet by default Error classes with sane… more | homepage
• kind-of: Get the native type of a value. | homepage
• kind-of-extra: Additional functionality to kind-of type check utility, support promises, generators… more | homepage
• kind-of-types: List of all javascript types. Used and useful for checking, validation, sanitizing and… more | homepage

Contributing

Pull requests and stars are always welcome. For bugs and feature requests, please create an issue.
But before doing anything, please read the CONTRIBUTING.md guidelines.

Charlike Make Reagent

Current Tags

• 1.1.0                                ...           latest (10 years ago)

4 Versions

• 1.1.0                                ...           10 years ago
• 1.0.1                                ...           11 years ago
• 1.0.0                                ...           11 years ago
• 0.0.0                                ...           11 years ago