import Foundation
import Glibc
//(1)定义字典
var dictionary = [["name":"wushan","age":"21"],["name":"sansa","age":"20"],["name:":"wuxi","age":""]]
//使用map返回age字符串数组,过滤掉age为空的值
var result = dictionary.map{$0["age"] ?? ""}.filter{$0 != ""}
print("age字符串为:")
print(result)
//(2)定义数组string
var string = ["44","ws","33","21","6y","the","21c"]
var intString = string.filter{Int($0) != nil }
print("能够被转换成Int的字符串有\(intString)")
//(3)使用reduce函数连接数组
//$0表示计算后的结果,$1表示数组中的每一个元素
var connectString = string.reduce("",{return $0=="" ? $1 : $0 + "," + $1})
print("连接后的字符串:\(connectString)")
//(4)用 reduce 方法一次求出整数数组的最大值、最小值、总数和
var intArray = [12,4,23,7,14,27,56]
var temp = intArray.reduce((max:Int.min,min:Int.max,sum:0)){(temp,i) in
return (max(temp.max,i),min(temp.min,i),temp.sum+i)
}
print("数组\(intArray)中:")
print("最大值:\(temp.max)")
print("最小值:\(temp.min)")
print("总数和:\(temp.sum)")
//(5)建立一个函数数组
var funcArray = [Any]()
//定义多个函数,存入数组
func f1(p1:String) -> String{
return p1
}//函数类型:(String)-> String
func f2(p1:Int) -> Int{
return p1
}//函数类型:(Int)-> Int
func f3(p1:Float) -> Float{
return p1
}//函数类型:(Float)-> Float
func f4(p1:Int,p2:Int) -> Int{
return p1+p2
}//函数类型:(Int,Int)-> Int
//将函数存入数组
funcArray.append(f1)
funcArray.append(f2)
funcArray.append(f3)
funcArray.append(f4)
//需要输出函数在数组中的下标
for (index,value) in funcArray.enumerated(){
if value is ((Int) -> Int){
print("The func \(index) is a type : (Int) -> Int")
}
}
//(6)扩展Int,增加sqrt方法
extension Int{
func sqrt(num:Int) -> Double{
return Glibc.sqrt(Double(num))
}
}
print(sqrt(16))
//(7)泛型函数找出最大值和最小值
func findMaxandMin<T:Comparable>(data:[T])-> (max:T,min:T){
var max = data[0]
var min = data[0]
for i in data{
if i>max{
max = i
}else if i<min{
min = i
}
}
return (max,min)
}
//传入整型数值
let dataInt=findMaxandMin(data:[2,5,13,15])
print("整型数值中:最大值为:\(dataInt.max) 最小值为:\(dataInt.min)")
//传入浮点数
let dataFloat=findMaxandMin(data:[2.3,1.6,9,9])
print("浮点数中:最大值为:\(dataFloat.max) 最小值为:\(dataFloat.min)")
//传入字符串
let dataString=findMaxandMin(data:["apple","banana","orange"])
print("字符串中:最大值为:\(dataString.max) 最小值为:\(dataString.min)")
About Online Swift Compiler
Try our Online Swift Compiler (Version Swift v5.7.3) to Edit, Run, and Share your Swift Code directly from your browser. This online development environment provides you the latest version Swift v5.7.3.
How to use Online Swift Compiler?
Write and Execute Code
- Write your program (or, paste it) directly under the "Source Code" tab.
- If you want to save your program, go to the "Project" menu and save it.
- You can directly execute your program without saving it by clicking on on "Execute" button.
User Input
The latest version of Coding Ground allows to provide program input at run time from the termnial window exactly the same way as you run your program at your own computer. So simply run a program and provide your program input (if any) from the terminal window available in the right side.
Online Swift Compiler: Keyboard Shortcuts
The following are the keyword shortcut of this Online Swift Compiler:
Shortcut | Description |
⌘ + Enter | Run the program |
⌘ + S | Save Project (Login Required) |
⇧ + ⌘ + S | Save As Project |
⌘ + P | New Project |
⌘ + G | Share Project |
⌘ + Z | Undo Editing |
⌘ + Y | Redo Editing |
⌘ + A | Select All Text |
⌘ + X | Cut Selected Text |
⌘ + C | Copy Selected Text |
⌘ + V | Paste Copied Text |
⌘ + F | Search Text |
⌘ + ⌥ + F | Replace Text |
Shortcut | Description |
Ctrl + Enter | Run the program |
Ctrl + S | Save Project |
Shift + Ctrl + S | Save As Project |
Ctrl + G | Share Project |
Ctrl + Z | Undo Editing |
Ctrl + Y | Redo Editing |
Ctrl + A | Select All Text |
Ctrl + X | Cut Selected Text |
Ctrl + C | Copy Selected Text |
Ctrl + V | Paste Copied Text |
Ctrl + F | Search Text |
Ctrl + H | Replace Text |
Online Swift Compiler: Save and Share Swift Code (Project)
Save Swift Project Online
You can save your Swift Project with us so that you can access this project later on. To save a project you will need to create a login Id with us. So before you save a project, please create a login Id using a link given at the top right corner of this page.
Share Swift Project Online
You can use this feature to share your Swift Code with your teachers, classmates and colleagues. Just click Share Button and it will create a short link, which can be shared through Email, WhatsApp or even through Social Media. A shared link will be deleted if it has been passive for almost 3 months.
More Features of Online Swift Compiler
- Theme – You can change the current editor's theme from the "Editor Theme" option under "Settings" menu.
- Font Size – You can change the font size of the editor /compiler from from the "Font Size" option under "Settings" menu.
- Tab Size – You can change the tab size from the "Tab Size" option under "Settings" Menu.
- Show/Hide Line Numbers – You can show/hide the line number with the code from the "Show Line Numbers" or "Hide Line Numbers" option under "Settings" Menu.
- And, many more.
Benefits of Using Online Swift Compiler
There are several benefits of using the Online Swift Compiler to run your Swift code:
- Platform independence: You can run your code from any device without taking care of operating systems.
- Convenience: You don't need to install anything for using this.
- No setup required: There is no need for additional setup to run your code.
- Updated version: Our online compiler/editors/terminals are the latest up-to-date.