clunderscore.js

/* global HTMLCollection, NodeList */
;(function () {
  var arrayProperties = {}
  var liveCollectionProperties = {}
  var functionProperties = {}
  var objectProperties = {}
  var slice = Array.prototype.slice

  arrayProperties.cl_each = function (cb) {
    var i = 0
    var length = this.length
    for (; i < length; i++) {
      cb(this[i], i, this)
    }
  }

  arrayProperties.cl_map = function (cb) {
    var i = 0
    var length = this.length
    var result = Array(length)
    for (; i < length; i++) {
      result[i] = cb(this[i], i, this)
    }
    return result
  }

  arrayProperties.cl_reduce = function (cb, memo) {
    var i = 0
    var length = this.length
    for (; i < length; i++) {
      memo = cb(memo, this[i], i, this)
    }
    return memo
  }

  arrayProperties.cl_some = function (cb) {
    var i = 0
    var length = this.length
    for (; i < length; i++) {
      if (cb(this[i], i, this)) {
        return true
      }
    }
  }

  arrayProperties.cl_filter = function (cb) {
    var i = 0
    var length = this.length
    var result = []
    for (; i < length; i++) {
      cb(this[i], i, this) && result.push(this[i])
    }
    return result
  }

  liveCollectionProperties.cl_each = function (cb) {
    slice.call(this).cl_each(cb)
  }

  liveCollectionProperties.cl_map = function (cb) {
    return slice.call(this).cl_map(cb)
  }

  liveCollectionProperties.cl_reduce = function (cb, memo) {
    return slice.call(this).cl_reduce(cb, memo)
  }

  functionProperties.cl_bind = function (context) {
    var self = this
    var args = slice.call(arguments, 1)
    context = context || null
    return args.length
      ? function () {
        return arguments.length
          ? self.apply(context, args.concat(slice.call(arguments)))
          : self.apply(context, args)
      }
      : function () {
        return arguments.length
          ? self.apply(context, arguments)
          : self.call(context)
      }
  }

  objectProperties.cl_each = function (cb) {
    var i = 0
    var keys = Object.keys(this)
    var length = keys.length
    for (; i < length; i++) {
      cb(this[keys[i]], keys[i], this)
    }
  }

  objectProperties.cl_map = function (cb) {
    var i = 0
    var keys = Object.keys(this)
    var length = keys.length
    var result = Array(length)
    for (; i < length; i++) {
      result[i] = cb(this[keys[i]], keys[i], this)
    }
    return result
  }

  objectProperties.cl_reduce = function (cb, memo) {
    var i = 0
    var keys = Object.keys(this)
    var length = keys.length
    for (; i < length; i++) {
      memo = cb(memo, this[keys[i]], keys[i], this)
    }
    return memo
  }

  objectProperties.cl_some = function (cb) {
    var i = 0
    var keys = Object.keys(this)
    var length = keys.length
    for (; i < length; i++) {
      if (cb(this[keys[i]], keys[i], this)) {
        return true
      }
    }
  }

  objectProperties.cl_extend = function (obj) {
    if (obj) {
      var i = 0
      var keys = Object.keys(obj)
      var length = keys.length
      for (; i < length; i++) {
        this[keys[i]] = obj[keys[i]]
      }
    }
    return this
  }

  function build (properties) {
    return objectProperties.cl_reduce.call(properties, function (memo, value, key) {
      memo[key] = {
        value: value
      }
      return memo
    }, {})
  }

  arrayProperties = build(arrayProperties)
  liveCollectionProperties = build(liveCollectionProperties)
  functionProperties = build(functionProperties)
  objectProperties = build(objectProperties)

  /* eslint-disable no-extend-native */
  Object.defineProperties(Array.prototype, arrayProperties)
  Object.defineProperties(Int8Array.prototype, arrayProperties)
  Object.defineProperties(Uint8Array.prototype, arrayProperties)
  Object.defineProperties(Uint8ClampedArray.prototype, arrayProperties)
  Object.defineProperties(Int16Array.prototype, arrayProperties)
  Object.defineProperties(Uint16Array.prototype, arrayProperties)
  Object.defineProperties(Int32Array.prototype, arrayProperties)
  Object.defineProperties(Uint32Array.prototype, arrayProperties)
  Object.defineProperties(Float32Array.prototype, arrayProperties)
  Object.defineProperties(Float64Array.prototype, arrayProperties)
  Object.defineProperties(Function.prototype, functionProperties)
  Object.defineProperties(Object.prototype, objectProperties)
  if (typeof window !== 'undefined') {
    Object.defineProperties(HTMLCollection.prototype, liveCollectionProperties)
    Object.defineProperties(NodeList.prototype, liveCollectionProperties)
  }
})()