README.md

is-kindof

Check type of given javascript value. Support promises, generators, streams, and native types. Built on kind-of lib.

Install

Install with npm

$ npm i is-kindof --save

Usage

For more use-cases see the tests

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

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• kind-of-extra: Additional functionality to kind-of type check utility. Support promises, generators, streams, errors. | 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
• kind-of: Get the native type of a value. | homepage
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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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