moimikey / typeov

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

typeov

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