软件简介
swift-javascriptish-arrays 是扩展 Swift 数组,使得数组类似 JavaScript。
push
添加多个元素到一个数组:
var fruits = ["Banana", "Orange"]
fruits.push("Apple")
fruits.push("Kiwi", "Papaya")
// fruits == ["Banana", "Orange", "Apple", "Kiwi", "Papaya"]
pop
移除和返回数组的最后一个元素:
var fruits = ["Apple", "Banana", "Orange"]
var popped = fruits.pop()
// popped == "Orange"
// fruits == ["Apple", "Banana"]
shift
移除和返回数组的第一个项:
var fruits = ["Banana", "Orange", "Apple", "Mango"]
var shifted = fruits.shift()
// shifted == "Banana"
// fruits == ["Orange", "Apple", "Mango"]
unshift
从数组开始位置添加新元素:
var fruits = ["Banana", "Orange"]
fruits.unshift("Lemon","Pineapple")
// fruits == ["Lemon","Pineapple", "Banana", "Orange"]
concat
假如多个数组,不改变现有的数组,但是会返回一个新的数组:
var yellowFruits = ["Banana", "Lemon"]
var otherFruits = ["Orange", "Apple"]
var allFruits = yellowFruits.concat(otherFruits)
// allFruits == ["Banana","Lemon", "Orange", "Apple"]