crocks/pointfree/option.js

A collection of well known Algebraic Datatypes for your utter enjoyment.

/** @license ISC License (c) copyright 2016 original and current authors */
/** @author Ian Hofmann-Hicks (evil) */

var curry = require('../core/curry')
var isFunction = require('../core/isFunction')

function option(x, m) {
  if(!(m && isFunction(m.option))) {
    throw new TypeError('option: Last argument must be a Maybe, First or Last')
  }

  return m.option(x)
}

module.exports = curry(option)