Javascriptish Swift Arrays

Extension to make swift arrays feel more JavaScript-like. Under construction.

push

Adds multiple elements to an array

var fruits = ["Banana", "Orange"]
fruits.push("Apple")
fruits.push("Kiwi", "Papaya")

// fruits == ["Banana", "Orange", "Apple", "Kiwi", "Papaya"]

pop

Removes and returns the last element of an array

var fruits = ["Apple", "Banana", "Orange"]
var popped = fruits.pop()

// popped == "Orange"
// fruits == ["Apple", "Banana"]

shift

Removes and returns the first item of an array

var fruits = ["Banana", "Orange", "Apple", "Mango"]
var shifted = fruits.shift()				

// shifted == "Banana"
// fruits == ["Orange", "Apple", "Mango"]

unshift

Adds new elements to the beginning of an array:

var fruits = ["Banana", "Orange"]
fruits.unshift("Lemon","Pineapple")

// fruits == ["Lemon","Pineapple", "Banana", "Orange"]

concat

Joins multiple arrays. Method does not change the existing arrays, but returns a new array.

var yellowFruits = ["Banana", "Lemon"]
var otherFruits = ["Orange", "Apple"]
var allFruits = yellowFruits.concat(otherFruits)

// allFruits == ["Banana","Lemon", "Orange", "Apple"]

indexOf

Searches the array for the specified item, and returns its position. The search will start at the specified position, or at the beginning if no start position is specified, and end the search at the end of the array. Returns -1 if the item is not found. If the item is present more than once, the indexOf method returns the position of the first occurence.

var fruits = ["Banana", "Orange", "Apple", "Mango"]
var a = fruits.indexOf("Apple")

// a == 2

var fruits = ["Banana", "Orange", "Apple", "Mango", "Banana", "Orange", "Apple"]
var a = fruits.indexOf("Apple", startIndex:4)

// a == 6

join

Joins all elements of an array into a string

var fruits = ["Banana", "Orange", "Apple", "Mango"]
var result = fruits.join()

// result = "Banana,Orange,Apple,Mango"

var fruits = ["Banana", "Orange", "Apple", "Mango"]
var result = fruits.join(separator:" & ")

// result = "Banana & Orange & Apple & Mango"

slice

Returns the selected elements in an array, as a new array object. Method selects the elements starting at the given start argument, and ends at, but does not include, the given end argument. The original array will not be changed.

var fruits = ["Banana", "Orange", "Lemon", "Apple", "Mango"]
var myBest = fruits.slice(-3, -1)

// myBest == ["Lemon","Apple"]

splice

Adds/removes items to/from an array at position, and return the removed items.

var fruits = ["Banana", "Orange", "Apple", "Mango"]
var spliced = fruits.splice(index:2, howMany:1, elements: "Lemon", "Kiwi")

// spliced == ["Apple"]
// fruits == ["Banana","Orange","Lemon","Kiwi","Mango"]