Shuffle Array and array of object values in javascript, PHP

January 2, 2021February 16, 2021 Arjun JS array shuffle

#1 Javascript: in javascript, there is no array shuffle inbuilt function, so we need to find some custom solution
solution1:

var arrData= [
    { some: 1 },
    { some: 2 },
    { some: 3 },
    { some: 4 },
    { some: 5 },
    { some: 6 },
    { some: 7 },
  ];
  console.log(arrData.sort( () => Math.random() - 0.5) );

Solution 2:

function shufflearray(array) {
  var currentIndex = array.length, temporaryValue, randomIndex;
 
  // While there remain elements to shuffle...
  while (0 !== currentIndex) {
 
    // Pick a remaining element...
    randomIndex = Math.floor(Math.random() * currentIndex);
    currentIndex -= 1;
 
    // And swap it with the current element.
    temporaryValue = array[currentIndex];
    array[currentIndex] = array[randomIndex];
    array[randomIndex] = temporaryValue;
  }
 
  return array;
}

#2 PHP: In php array shuffle is very easy to implement because, there is a inbuilt function provided “shuffle()“

1 2	`$arrData= [{ some: 1 },{ some: 2 },{ some: 3 },{ some: 4 },{ some: 5 },{ some: 6 },{ some: 7 }];` `print_r(shuffle($arrData));` `//this is used just to print output.`

#3 C# : In c# there is no direct shuffle function, so we need to use random and orderby to get the output

Random rnd=new Random();
string[] arrData = [{ some: 1 },{ some: 2 },{ some: 3 },{ some: 4 },{ some: 5 },{ some: 6 },{ some: 7 }];
string[] MyRandomArray = arrData.OrderBy(x => rnd.Next()).ToArray();

#4 Java : Implemented via custom function

package com.journaldev.examples;
 
import java.util.Arrays;
import java.util.Random;
 
public class ShuffleArray {
 
    public static void main(String[] args) {
         
        int[] array = { 1, 2, 3, 4, 5, 6, 7 };
         
        Random rand = new Random();
         
        for (int i = 0; i < array.length; i++) {
            int randomIndexToSwap = rand.nextInt(array.length);
            int temp = array[randomIndexToSwap];
            array[randomIndexToSwap] = array[i];
            array[i] = temp;
        }
        System.out.println(Arrays.toString(array));
    }
}

Arjun JS

Arjun is a Full-stack developer, who is fond of the web. Lives in Chikmagalur, Karnataka, India

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