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  • License MIT

👺 weak but accurate type checking that returns a string representation of input's type

Package Exports

  • typeov

This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (typeov) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

Readme

typeov Build Status

Version Downloads Deps DevDeps

Install (~1900 bytes)

npm install --save typeov
yarn add typeov

Usage

import { typeov } from 'typeov'

const a = []

if (typeov(a) === 'array') {
  // true => array
}

if (typeof(a) === 'array') {
  // false => object
}
var typeov = require('typeov').typeov

var b = Math.PI

if (typeov(b) === 'float') {
  // true
}
const jsonString = '[{"version":"1.2.3"}]'
const isJSON = typeov(jsonString) === 'json' // true

Possible return values

  • array
  • boolean
  • buffer
  • float
  • function
  • infinity
  • json
  • map
  • null
  • number
  • object
  • promise
  • regexp
  • set
  • stream
  • symbol
  • undefined
  • weakmap
  • weakset

Notes

Be mindful of what you're checking

> typeov(Symbol)
'function'
> typeov(Symbol())
'symbol'
> typeov(Promise)
'function'
> typeov(new Promise(() => {}))
'promise'
> typeov(Promise.resolve(true))
'promise'

License

License