CoffeeScript Object.assign polyfill

assign.coffee

# adapted from https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/assign#Polyfill
# with help from JS2Coffee
# https://codepen.io/mahemoff/pen/xOBgdk?editors=0010

if typeof Object.assign != 'function'

  Object.assign = (target) ->

    index = 1
    while index < arguments.length
      source = arguments[index]
      if source != null
        for key of source
          if Object::hasOwnProperty.call(source, key)
            target[key] = source[key]
      index++
    target

catalogue = apples: 1, bananas: 2
veges = asparagi: 1, beetroot: 2
Object.assign(catalogue, veges)
console.log catalogue