Sort Array

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@IBAction func doSomething()
@IBAction func doSomething(sender: UIButton)
@IBAction func doSomething(sender: UIButton, forEvent event: UIEvent)

[[NSProcessInfo processInfo] operatingSystemVersion]

import 'package:flutter/material.dart';

void main() {
  runApp(
    new MaterialApp(
      title: 'Hello World App',
      home: new myApp(),
    )
  );
}

class myApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return new Scaffold(
      appBar: new AppBar(
        title: new Text('Hello World App'),
      ),
      body: new Center(
        child: new Text(
          'Hello, world!'
        ),
      ),
    );
  }
}

override func viewDidLoad() {
    super.viewDidLoad()
    // Swift block syntax (iOS 10+)
    let timer = Timer(timeInterval: 0.4, repeats: true) { _ in print("Done!") }
    // Swift >=3 selector syntax
    let timer = Timer.scheduledTimer(timeInterval: 0.4, target: self, selector: #selector(self.update), userInfo: nil, repeats: true)
    // Swift 2.2 selector syntax
    let timer = NSTimer.scheduledTimerWithTimeInterval(0.4, target: self, selector: #selector(MyClass.update), userInfo: nil, repeats: true)
    // Swift <2.2 selector syntax
    let timer = NSTimer.scheduledTimerWithTimeInterval(0.4, target: self, selector: "update", userInfo: nil, repeats: true)
}

// must be internal or public. 
@objc func update() {
    // Something cool
}

itemList.stream()
          .filter(item -> item.getPropertyList()
                         .stream().anyMatch(property -> property.getKey().equals("Test")))
           .collect(Collectors.toList());

for (int i = 0; i < n; i++)
{
    if (valCount.ContainsKey(x))
        valCount[x]++;
    else
        valCount[x] = 1;
}

 const arr = ["This", "Little", "Piggy"];
const first = arr.slice(0, 1);
const the_rest = arr.slice(1);console.log(first); // ["This"]
console.log(the_rest); // ["Little", "Piggy"]                               
                                

$oneDimensionalArray = array_map('current', $twoDimensionalArray);

/*
current() function returns the value of the current element in an array. for ex : $fruits = array("banana", "apple", "orange"); echo current($fruits) //will return "banana" since current pointer is on index 0 which is banana
*/

function isEqual(arr1,arr2){
  let x = arr1.length;
  let y = arr2.lenght;
  
  //if lenght of array are not equal means array are not equal 
  if(x !=  y) return false;
  
  //sorting both array
  x.sort();
  y.sort();
  
  // Linearly compare elements
  for(let i=0;i<x;i++){
    if(x[i] != y[i]) return false
  }
  // If all elements were same.
    return true
}

let arrayOne = [3, 5, 2, 5, 2]
let arrayTwo = [2, 3, 5, 5, 2]

isEqual(arrayOne,arrayTwo) ? console.log("Matched") : console.log("Not Match")

const arr = ["Apple",45,"","google",null],,,,"facebook","",69]

const removeEle = arr.filter((el)=> return el !=null && el != "")

const arr = [333,1,2,11,22,3,4]
console.log(arr.sort())

arr.sort((a,b)=>a-b)

console.log(arr)

let items = [1,25,"JavaScript",69,"css","34","keep coding","html"];
console.log(items)

//shuffle array
function shuffle(arr){
  for(let i =arr.length-1;i>0;i--){
    const j = Math.floor(Math.random() * (i+1));
    [arr[i],arr[j]] = [arr[j],arr[i]];
  }
  return arr
}
console.log(shuffle(items))

//shuffle selected index 
const  itemToShuffle = items.slice(3,7);
console.log(shuffle(itemToShuffle))

//items after shuffling item from index 3 to 7
items = [items[0],items[1],items[2],...itemToShuffle,items[7]]
console.log(items)

let clickMe = document.querySelector('button');

function getRandomNumber(min, max) {
  let totalEle = max - min + 1;
  let result = Math.floor(Math.random() * totalEle) + min;
  return result;
}
function createArrayOfNumber(start, end) {
  let myArray = [];
  for (let i = start; i <= end; i++) {
    myArray.push(i);
  }
  return myArray;
}
let numbersArray = createArrayOfNumber(1, 10);

clickMe.addEventListener('click', () => {
  if (numbersArray.length === 0) {
    console.log('No more random number');
    return;
  }
  let randomIndex = getRandomNumber(0, numbersArray.length - 1);
  let randomNumber = numbersArray[randomIndex];
  numbersArray.splice(randomIndex, 1);
  console.log(randomNumber);
});

const array = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10];
const shuffledArray = array.sort((a, b) => 0.5 - Math.random());

// using Array map and Math.random
const shuffledArr = array => array.map(a => ({ sort: Math.random(), value: a })).sort((a, b) => a.sort - b.sort).map(a => a.value);