reverse a array code example

Example 1: javascript reverse array

var arr = [34, 234, 567, 4];
print(arr);
var new_arr = arr.reverse();
print(new_arr);

Example 2: array reverse algorithm in js

let array1 = ["yes", "no", "maybe", "always", "sometimes", "never", "if"];
let array2 = [5,8,2,9,5,6,3,1];

function reverseArray(arr) {
  var newArray = [];
  for (var i = arr.length - 1; i >= 0; i--) {
    newArray.push(arr[i]);
  }
  return newArray;
}

reverseArray(array1); // ["if", "never", "sometimes", "always", "maybe", "no", "yes"]
reverseArray(array2); // [1, 3, 6, 5, 9, 2, 8, 5]

Example 3: reverse array javascript

var rev = arr.reverse();

Example 4: reverse array in javascript

const reverseArray = arr => arr.reduce((acc, val) =>  [val, ...acc], [])

Example 5: Reversing an array

#include<iostream>
using namespace std;
int main()
{
	int Arr[100],n,temp,i,j;
	cout<<"Enter number of elements you want to insert ";
	cin>>n;
	for(i=0;i<n;i++)
	{
		cout<<"Enter element "<<i+1<<":";
		cin>>Arr[i];
	}
	for(i=0,j=n-1;i<n/2;i++,j--)
	{
		temp=Arr[i];
		Arr[i]=Arr[j];
		Arr[j]=temp;
	}
	cout<<"\nReverse array"<<endl;
	for(i=0;i<n;i++)
		cout<<Arr[i]<<" ";
	return 0;
}