e-sung

func downloadFile(from remoteURL: URL, completion: @escaping (_ localURL: URL) -> Void) {
    let documentsDirectoryURL = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask).first!
    let destinationUrl = documentsDirectoryURL.appendingPathComponent(randomString)

    if FileManager.default.fileExists(atPath: destinationUrl.path) {
        DispatchQueue.main.async { completion(destinationUrl) }; return
    }
    URLSession.shared.downloadTask(with: remoteURL, completionHandler: { (location, response, error) -> Void in
        guard let location = location, error == nil else { return }
        do {

e-sung

var cursorX = 0
var cursorY = 0

document.onmousemove = function(e){
    cursorX = e.pageX;
    cursorY = e.pageY;
}

document.addEventListener('keypress', function (e) {
    var key = e.which || e.keyCode;

e-sung

#! /usr/local/bin/zsh

authorName="Sungdoo Yoo" #Put your Name here
dayStart="8am" #Put the time when you start your day

for refName in $(git for-each-ref --format='%(refname)' refs/heads/);
do
    boilerPlateToRemove="refs/heads/"
    branchName="${refName//$boilerPlateToRemove/""}"
    result=""

e-sung

#! /bin/bash

# Generate Log with commits with certain prefixes ( `-`, `*`, `.`)
git log $1...$2 --no-merges --format="%Cgreen## %s%n%Creset%b" --grep "- " --grep "\. " --grep "\* " >> changelog.md

e-sung

let dateFormat = DateFormatter()
dateFormat.dateFormat = "yyyy/MM/dd/HH/mm/ss"
print(dateFormat.date(from: "20160610090000"))

e-sung

let dateFormat = DateFormatter()
dateFormat.dateFormat = "yyyy/MM/dd/HH/mm/ss"
dateFormatter.locale = Locale(identifier:"en_US_POSIX") // 추가 된 코드
print(dateFormat.date(from: "20160610090000"))

e-sung

class ModelController: NSObject {
    var kittisList = ["🐱", "😹", "😼", "😸", "😽", "😾"]
    var smileyList = ["😐", "😂", "😏", "😊", "😊", "😠", "😱"]
}

class ViewController: UIViewController, UITableViewDataSource, UITableViewDelegate {

    // MARK: - View
    @IBOutlet var tableView: UITableView!
    @IBOutlet var segmentControl: UISegmentedControl!

e-sung

class ViewController: UIViewController {

    // MARK: - View
    @IBOutlet var tableView: UITableView!
    @IBOutlet var segmentControl: UISegmentedControl!

    // MARK: - DatSources
    var dataSources:[UITableViewDataSource] = []
    let catDataSource = CatDataSource()
    let smileyDataSOurce = SmileyDataSource()

e-sung

// 옛날 버전. "세그먼트 콘트롤이 눌리면 테이블뷰를 리로드하라"로 밖에 읽히지 않는다.
@IBAction func segementSelected(_ sender: UISegmentedControl) {
    tableView.reloadData()
}
// 리팩토링버전. "선택된 세그먼트에 해당되는 데이터로 테이블을 채워라"라는 의도가 보인다.
@IBAction func segementSelected(_ sender: UISegmentedControl) {
    tableView.dataSource = dataSources[sender.selectedSegmentIndex]
    tableView.reloadData()
}

e-sung

class SmileyDataSource: NSObject, UITableViewDataSource {
    var dataList: [String] = []
    func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        return dataList.count
    }
    
    func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
        let item = dataList[indexPath.row]
        let cell = tableView.dequeueReusableCell(withIdentifier: "smileyCell", for: indexPath)
        cell.textLabel?.text = item