Shuffle Array and array of object values in javascript, PHP
#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()“
$arrData= [{ some: 1 },{ some: 2 },{ some: 3 },{ some: 4 },{ some: 5 },{ some: 6 },{ some: 7 }];
print_r(shuffle($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 is a Full-stack developer, who is fond of the web. Lives in Chikmagalur, Karnataka, India
