kind-of-extra

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

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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