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
  }

IhwanID

var colorArray = ["blue", "white", "yellow", "red","blue", "white", "yellow", "red","blue", "white", "yellow", "red","blue", "white", "yellow", "red","blue", "white", "yellow", "red","yellow", "red","yellow", "red","yellow", "red", "red"]

func getMostColor(input: [String]) -> String{
    var topColor: String = ""
    var colorDict: [String:Int] = [:]

    for color in input{
        colorDict[color, default:0]+=1
    }

IhwanID

//
//  MotivasiHarianWidget.swift
//  MotivasiHarianWidget
//
//  Created by Ihwan ID on 13/01/21.
//

import WidgetKit
import SwiftUI
import Intents

IhwanID

struct ContentView: View {
    var body: some View {
        TabView {
            Text("Home Page")
              .tabItem {
                 Image(systemName: "house.fill")
                 Text("Homeb")
               }
            Text("Favorite Page")
              .tabItem {

IhwanID

struct ContentView: View {
    var body: some View {
        let rangga = Student(name: "Rangga", age: 18)
        let andi = Student(name: "Andi",age: 19)
        let ihwan = Student(name: "Ihwan", age: 20)
        let students = [rangga, andi, ihwan]

        return List(students) { student in
            StudentRow(student: student)
        }