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kind-of-extra

tunnckocore72MIT1.0.4

Additional functionality to [kind-of][] type check utility. Support promises, generators, streams, errors.

check, err, error, extra

readme

kind-of-extra npmjs.com The MIT License npm downloads

Additional functionality to kind-of type check utility. Support promises, generators, streams, errors.

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Install

Install with npm

$ npm i kind-of-extra --save

Usage

For more use-cases see the tests

const kindOfExtra = require('kind-of-extra')

API

kindOfExtra

Type check utility on steroids.

Params

  • val {Mixed}: value to check what type is
  • returns {String}: type of the given val

Example

var kindof = require('kind-of-extra')

kindof(123) // => 'number'
kindof('foo') // => 'string'
kindof({a: 'b'}) // => 'object'
kindof(null) // => 'null'
kindof(undefined) // => 'undefined'
kindof(false) // => 'boolean'
kindof(true) // => 'boolean'
kindof(new Date()) // => 'date'

var through2 = require('through2')
kindof(through2()) // => 'stream'
kindof(new Error('foo')) // => 'error'
kindof(Promise.resolve(42)) // => 'promise'
kindof(function * () { yield 43 }) // => 'generatorfunction'
kindof((a, b) => { return a + b }) // => 'function'

Related

  • always-done: Handle completion and errors with elegance! Support for streams, callbacks, promises, child processes, async/await and sync functions. A drop-in replacement for async-done - pass 100… more | homepage
  • is-kindof: Check type of given javascript value. Support promises, generators, streams, and native types. Thin wrapper around kind-of module. | homepage
  • kind-of-types: List of all javascript types. Used and useful for checking, validation, sanitizing and testing. Like isStream, isPromise, isWeakset and etc. | homepage
  • minibase: MiniBase is minimalist approach to Base - @node-base, the awesome framework. Foundation for building complex APIs with small units called plugins. Works well with most… more | homepage
  • mukla: Small, parallel and fast test framework with suppport for async/await, promises, callbacks, streams and observables. Targets and works at node.js v0.10 and above. | homepage
  • to-callback: Converts result-first callbacks to classic (node.js-style) error-first callbacks with 3 lines of code. Useful when you want to promisify result-first APIs (like emitter.on). Inspired by… more | homepage
  • try-catch-core: Low-level package to handle completion and errors of sync or asynchronous functions, using once and dezalgo libs. Useful for and used in higher-level libs such… 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.

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changelog

Change Log

All notable changes to this project will be documented in this file. See standard-version for commit guidelines.

1.0.4 (2016-11-05)

Bug Fixes

  • fix check for errors, remove check for hybrids (82175a7)

1.0.3 - 2016-02-11

  • Release v1.0.3 / npm@v1.0.3
  • no breaking changes: repo boilerplate stuff, license year range, travis builds, links
  • simplify tests
  • add readme docs and comments
  • add extra option, that allows you to disable checks (pass false) for generator and generator function
    • actually it will return it's actual type (generator is object, generator function is function)
    • otherwise it will return 'generator' when generator and 'generatorfunction' for generator function

1.0.2 - 2016-02-10

  • Release v1.0.1 / npm@v1.0.2
  • lock for now to then-got@1 not then-got@2 used in tests
  • greenkeepr enable the repo and bump deps

1.0.1 - 2015-06-30

  • Release v1.0.1 / npm@v1.0.1
  • bump deps
  • switch to use strict is-node-stream
  • update boilerplate

1.0.0 - 2015-06-30

  • Release v1.0.0 / npm@v1.0.0
  • add related section
  • update usage
  • update badges
  • implement :star2:

0.0.0 - 2015-06-30

  • first commits