IhwanID

//func hasPairWithSum(_ arr: [Int], _ sum: Int) -> Bool {
//
//    for i in 0..<arr.count {
//        for j in i + 1..<arr.count {
//            if arr[i] + arr[j] == sum {
//                return true
//            }
//        }
//    }
//    return false

IhwanID

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE dictionary SYSTEM "file://localhost/System/Library/DTDs/sdef.dtd">

<dictionary title="Standard Terminology">

	<suite name="Standard Suite" code="????" description="Common classes and commands for all applications.">

		<command name="open" code="aevtodoc" description="Open a document.">
			<direct-parameter description="The file(s) to be opened.">
				<type type="file"/>

IhwanID

if let collectionViewLayout = collectionView.collectionViewLayout as? UICollectionViewFlowLayout {
            collectionViewLayout.estimatedItemSize = UICollectionViewFlowLayout.automaticSize
        }

IhwanID

{"status":"ok","totalResults":38,"articles":[{"source":{"id":null,"name":"Kompas.com"},"author":"Rendika Ferri Kurniawan","title":"Fakta-fakta 8 Planet di Tata Surya dan Kemungkinan Planet Kesembilan - Kompas.com - KOMPAS.com","description":"Ada planet-planet yang bergerak tak searah jarum jam, bahkan porosnya miring. Ada juga yang berwarna merah tapi justru dingin. Ini fakta-fakta planet.","url":"https://www.kompas.com/tren/read/2022/03/08/193100965/fakta-fakta-8-planet-di-tata-surya-dan-kemungkinan-planet-kesembilan","urlToImage":"https://asset.kompas.com/crops/zJuFpHFHSpTLKGj4GElqaUkMx1s=/150x4:835x460/780x390/filters:watermark(data/photo/2020/03/10/5e6775d554370.png,0,-0,1)/data/photo/2021/04/19/607cec3127dfa.jpg","publishedAt":"2022-03-08T12:31:00Z","content":null},{"source":{"id":null,"name":"Kompas.com"},"author":"Reska K. Nistanto","title":"Cara Nonton Apple Event Malam Ini, iPhone SE 3 Bakal Meluncur? - Kompas.com - Tekno Kompas.com","description":"Apple akan menggelar acara peluncuran bertajuk 'Peek

IhwanID

import XCTest

extension XCTestCase{
    func trackMemoryLeaks(_ instance: AnyObject, file: StaticString = #file, line: UInt = #line){
        addTeardownBlock { [weak instance] in
            XCTAssertNil(instance, "Instance should have been deallocated. Potential memory leak.", file: file, line: line)
        }
    }
}

IhwanID

import UIKit

class FeedViewController: UIViewController{
    var loadFeed: ((([String]) -> Void) -> Void)!
    
    convenience init(loadFeed: @escaping (([String]) -> Void) -> Void){
        self.init()
        self.loadFeed = loadFeed
    }
    

IhwanID

let numbers = [1, 2, 3 , 4 , 5, 6]

for number in numbers{
    if number.isMultiple(of: 2){
        print(number)
    }
}

for number in numbers where number.isMultiple(of: 2){
    print(number)

IhwanID

extension Optional where Wrapped == String{
    var orEmpty: String{
        switch self{
        case .some(let value):
            return value
        case .none:
            return ""
        }
    }
}

IhwanID

//
//  ViewController.swift
//  Pokemon
//
//  Created by Ihwan ID on 04/02/21.
//

import UIKit
import Combine

IhwanID

func twoSum(_ nums: [Int], _ target: Int) -> [Int] {
  var dictionary = [Int:Int]();
  
  for index in 0 ..< nums.count {
    let complement = target - nums[index];
    if dictionary.keys.contains(complement) && dictionary[complement] != index {
      return [dictionary[complement]!,index];
    }
    dictionary[nums[index]] = index
  }