wiwi-git

func moneyPlaceHolder(money: Int) -> String {
    guard money >= 0 else { return "" }
    
    let moneyString = String(money)
    let moneyCount = moneyString.count
    let insertPlaceCount = 3
    
    if moneyCount <= insertPlaceCount {
        return moneyString
    }

wiwi-git

//: A UIKit based Playground for presenting user interface
  
import UIKit
import PlaygroundSupport

class MyViewController : UIViewController {
    var data = [
        "AB",
        "BC",
        "CD",

wiwi-git

import Foundation

let stringWithMathematicalOperation: String = "(34+2)/3*12-39"
let exp: NSExpression = NSExpression(format: stringWithMathematicalOperation)
let result: Double = exp.expressionValue(with:nil, context: nil) as! Double

wiwi-git

@objc func touchUpStartButtonAction() {
        print("start")
        
        for url in imageUrls {
            DispatchQueue.global(qos: .userInteractive).async {
                let image = UIImage(contentsOfFile: url!.relativePath)
                DispatchQueue.main.async {
                    print(url!.relativePath)
                    self.loadingView!.imageView.image = image
                    self.loadingView!.setNeedsDisplay()

wiwi-git

@objc func touchUpStartButtonAction() {
        print("start")
        
        for url in imageUrls {
            let image = UIImage(contentsOfFile: url!.relativePath)
            
            
            DispatchQueue.main.async {
                print(url!.relativePath)
                self.loadingView!.imageView.image = image

wiwi-git

@objc func touchUpStartButtonAction() {
        print("start")
        
        for url in imageUrls {
            let image = UIImage(contentsOfFile: url!.relativePath)
            print(url!.relativePath)
            self.loadingView!.imageView.image = image
            self.loadingView!.setNeedsDisplay()
            var t = 0
            for i in 0 ... 5000000 {

wiwi-git

class ViewController: UIViewController {
    var loadings = UIView()
    var loadingView:LoadingView?
    var imageUrls:[URL?] = []
    
    override func viewDidLoad() {
        super.viewDidLoad()
        loadingsSetting()
        startButtonSetting()

wiwi-git

let text = "가나다라마바사아자차"
let index0 = text.startIndex
let indexE = text.endIndex
let result = text[index0 ..< indexE]
print(result) // "가나다라마바사아자차"

wiwi-git

if let range0 = text.range(of: "다라") {
    let startWord = text[range0].startIndex
    let endWord = text[range0].endIndex
    let w0 = text[text.startIndex ..< startWord]
    let w1 = text[startWord ..< endWord]
    let w2 = text[endWord ..< text.endIndex]
    print("\(w0)\n\(w1)\n\(w2)")
}

wiwi-git

let text = "가나다라마바사아자차"

func stringParsing(text:String) -> (String,String,String)? {
    let index0 = text.startIndex
    let indexE = text.endIndex
    let result = text[index0 ..< indexE]
    print(result)
    
    guard text.contains("다라") else { return nil }