# is-kindof > Check type of given javascript value. Support promises, generators, streams, and native types. Built on [kind-of][] lib. Latest version **3.0.1** (published 2016-11-06) · MIT license · 0 weekly downloads ## Install ```sh npm install is-kindof pnpm add is-kindof yarn add is-kindof bun add is-kindof ``` ## Health **Score 15/100 (F)** — status: abandoned. Positive: no vulnerabilities. Warnings: low downloads; no types; no esm support. Negative: abandoned; low maintenance score. ## Facts | | | |---|---| | Version | 3.0.1 | | Published | 2016-11-06 | | First published | 2015-03-25 | | Weekly downloads | 0 | | License | MIT | | TypeScript types | none | | Module format | CommonJS | | Dependencies | 3 | | Known vulnerabilities | 0 | | Install scripts | no | | GitHub stars | 5 | | Author | Charlike Mike Reagent | | Maintainers | tunnckocore | | Keywords | check, functional, is, kind, kindof, programming, type, typeof, utils, validate | ## Links - npm: https://www.npmjs.com/package/is-kindof - Repository: https://github.com/tunnckocore/is-kindof - Homepage: https://github.com/tunnckocore/is-kindof#readme - Issues: https://github.com/tunnckocore/is-kindof/issues - npm.io page: https://npm.io/package/is-kindof ## Dependencies (3) - [lazy-cache](https://npm.io/package/lazy-cache.md) ^2.0.1 - [kind-of-extra](https://npm.io/package/kind-of-extra.md) ^1.0.4 - [kind-of-types](https://npm.io/package/kind-of-types.md) ^1.0.1 ## Alternatives - [memory-cache](https://npm.io/package/memory-cache.md) — 795.0K weekly downloads - [@httptoolkit/proxy-agent](https://npm.io/package/@httptoolkit/proxy-agent.md) — 11.2K weekly downloads - [express-cache-controller](https://npm.io/package/express-cache-controller.md) — 5.3K weekly downloads - [http-cache-middleware](https://npm.io/package/http-cache-middleware.md) — 4.5K weekly downloads - [cache2](https://npm.io/package/cache2.md) — 1.5K weekly downloads ## Recent versions - 3.0.1 (latest) — 2016-11-06 - 3.0.0 — 2016-11-05 - 2.1.1 — 2015-07-14 - 2.1.0 — 2015-06-30 - 2.0.0 — 2015-06-28 - 1.0.0 — 2015-03-25 - 0.0.0 — 2015-03-25 ## README # [is-kindof][author-www-url] [![npmjs.com][npmjs-img]][npmjs-url] [![The MIT License][license-img]][license-url] [![npm downloads][downloads-img]][downloads-url] > Check type of given javascript value. Support promises, generators, streams, and native types. Built on [kind-of][] lib. [![code climate][codeclimate-img]][codeclimate-url] [![standard code style][standard-img]][standard-url] [![travis build status][travis-img]][travis-url] [![coverage status][coveralls-img]][coveralls-url] [![dependency status][david-img]][david-url] ## Install > Install with [npm](https://www.npmjs.com/) ```sh $ npm i is-kindof --save ``` ## Usage > For more use-cases see the [tests](./test.js) ```js var is = require('is-kindof') is.array([1, 2]) // => true is.boolean(true) // => true is.buffer(new Buffer('foo')) // => true is.date(new Date()) // => true is.error(new Error('foo')) // => true is.function(function noop () {}) // => true is.generator((function * gen () { yield 42 })()) // => true is.generatorfunction(function * genFn () {}) // => true is.map(new Map()) // => true is.null(null) // => true is.number(123) // => true is.object({ a: 'b' }) // => true is.promise(Promise.resolve(123)) // => true is.regexp(new RegExp('aa')) // => true is.set(new Set()) // => true is.stream(through2()) // => true is.string('fooo') // => true is.symbol(Symbol()) // => true is.undefined(undefined) // => true is.weakmap(new WeakMap()) // => true is.weakset(new WeakSet()) // => true ``` ## Related - [always-done](https://www.npmjs.com/package/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](https://github.com/hybridables/always-done#readme) | [homepage](https://github.com/hybridables/always-done#readme "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% of its tests plus more") - [is-async-function](https://www.npmjs.com/package/is-async-function): Is function really asynchronous function? Trying to guess that based on check if [common-callback-names][] exists as function arguments names or you can pass your custom. | [homepage](https://github.com/tunnckocore/is-async-function#readme "Is function really asynchronous function? Trying to guess that based on check if [common-callback-names][] exists as function arguments names or you can pass your custom.") - [is-callback-function](https://www.npmjs.com/package/is-callback-function): Returns true if function is a callback. Checks its name is one of [common-callback-names][] - callback, cb, cb_, callback_, next, done, they can be customized… [more](https://github.com/tunnckocore/is-callback-function#readme) | [homepage](https://github.com/tunnckocore/is-callback-function#readme "Returns true if function is a callback. Checks its name is one of [common-callback-names][] - callback, cb, cb_, callback_, next, done, they can be customized, these are default.") - [kind-of-extra](https://www.npmjs.com/package/kind-of-extra): Additional functionality to [kind-of][] type check utility. Support promises, generators, streams, errors. | [homepage](https://github.com/tunnckocore/kind-of-extra#readme "Additional functionality to [kind-of][] type check utility. Support promises, generators, streams, errors.") - [kind-of-types](https://www.npmjs.com/package/kind-of-types): List of all javascript types. Used and useful for checking, validation, sanitizing and testing. Like isStream, isPromise, isWeakset and etc. | [homepage](https://github.com/tunnckocore/kind-of-types#readme "List of all javascript types. Used and useful for checking, validation, sanitizing and testing. Like isStream, isPromise, isWeakset and etc.") - [kind-of](https://www.npmjs.com/package/kind-of): Get the native type of a value. | [homepage](https://github.com/jonschlinkert/kind-of "Get the native type of a value.") - [minibase](https://www.npmjs.com/package/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](https://github.com/node-minibase/minibase#readme) | [homepage](https://github.com/node-minibase/minibase#readme "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 of the already existing [base][] plugins.") - [mukla](https://www.npmjs.com/package/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](https://github.com/tunnckocore/mukla#readme "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.") - [to-callback](https://www.npmjs.com/package/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](https://github.com/tunnckocore/to-callback#readme) | [homepage](https://github.com/tunnckocore/to-callback#readme "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 [rfpify][] and probably used in it.") ## Contributing Pull requests and stars are always welcome. For bugs and feature requests, [please create an issue](https://github.com/tunnckoCore/is-kindof/issues/new). But before doing anything, please read the [CONTRIBUTING.md](./CONTRIBUTING.md) guidelines. ## [Charlike Make Reagent](http://j.mp/1stW47C) [![new message to charlike][new-message-img]][new-message-url] [![freenode #charlike][freenode-img]][freenode-url] [![tunnckoCore.tk][author-www-img]][author-www-url] [![keybase tunnckoCore][keybase-img]][keybase-url] [![tunnckoCore npm][author-npm-img]][author-npm-url] [![tunnckoCore twitter][author-twitter-img]][author-twitter-url] [![tunnckoCore github][author-github-img]][author-github-url] [async-done]: https://github.com/gulpjs/async-done [base]: https://github.com/node-base/base [common-callback-names]: https://github.com/tunnckocore/common-callback-names [kind-of]: https://github.com/jonschlinkert/kind-of [rfpify]: https://github.com/samverschueren/rfpify [npmjs-url]: https://www.npmjs.com/package/is-kindof [npmjs-img]: https://img.shields.io/npm/v/is-kindof.svg?label=is-kindof [license-url]: https://github.com/tunnckoCore/is-kindof/blob/master/LICENSE [license-img]: https://img.shields.io/npm/l/is-kindof.svg [downloads-url]: https://www.npmjs.com/package/is-kindof [downloads-img]: https://img.shields.io/npm/dm/is-kindof.svg [codeclimate-url]: https://codeclimate.com/github/tunnckoCore/is-kindof [codeclimate-img]: https://img.shields.io/codeclimate/github/tunnckoCore/is-kindof.svg [travis-url]: https://travis-ci.org/tunnckoCore/is-kindof [travis-img]: https://img.shields.io/travis/tunnckoCore/is-kindof/master.svg [coveralls-url]: https://coveralls.io/r/tunnckoCore/is-kindof [coveralls-img]: https://img.shields.io/coveralls/tunnckoCore/is-kindof.svg [david-url]: https://david-dm.org/tunnckoCore/is-kindof [david-img]: https://img.shields.io/david/tunnckoCore/is-kindof.svg [standard-url]: https://github.com/feross/standard [standard-img]: https://img.shields.io/badge/code%20style-standard-brightgreen.svg [author-www-url]: http://www.tunnckocore.tk [author-www-img]: https://img.shields.io/badge/www-tunnckocore.tk-fe7d37.svg [keybase-url]: https://keybase.io/tunnckocore [keybase-img]: https://img.shields.io/badge/keybase-tunnckocore-8a7967.svg [author-npm-url]: https://www.npmjs.com/~tunnckocore [author-npm-img]: https://img.shields.io/badge/npm-~tunnckocore-cb3837.svg [author-twitter-url]: https://twitter.com/tunnckoCore [author-twitter-img]: https://img.shields.io/badge/twitter-@tunnckoCore-55acee.svg [author-github-url]: https://github.com/tunnckoCore [author-github-img]: https://img.shields.io/badge/github-@tunnckoCore-4183c4.svg [freenode-url]: http://webchat.freenode.net/?channels=charlike [freenode-img]: https://img.shields.io/badge/freenode-%23charlike-5654a4.svg [new-message-url]: https://github.com/tunnckoCore/ama [new-message-img]: https://img.shields.io/badge/ask%20me-anything-green.svg --- _Source: https://npm.io/package/is-kindof · Machine-readable twin of the npm.io package page. 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