rambda/src/includes.js

Lightweight faster alternative to Ramda

import { equals } from './equals'

export function includes(valueToFind, input){
  if (arguments.length === 1) return _input => includes(valueToFind, _input)

  if (typeof input === 'string'){
    return input.includes(valueToFind)
  }
  if (!Array.isArray(input)) return false

  let index = -1

  while (++index < input.length){
    if (equals(input[ index ], valueToFind)){
      return true
    }
  }

  return false
}