oops/hasnt.js

Functional <3 to rescue from OOPs

"use strict";

var curry = require("functional/curry")

var hasnt = curry(function hasnt(name, dictionary) {
  /**
  High order function that returns predicate function which will return
  `true` if given `hash` has a field with that `name` and `false` if doesn't.
  **/
  return !dictionary || !(name in dictionary)
})

module.exports = hasnt