Answers for "javascript how to reverse an array"

33

javascript reverse array

var arr = [34, 234, 567, 4];
print(arr);
var new_arr = arr.reverse();
print(new_arr);
Posted by: Guest on November-16-2019
1

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]
Posted by: Guest on June-06-2020
5

reverse array javascript

const list = [1, 2, 3, 4, 5];
list.reverse();
Posted by: Guest on August-28-2020
0

js reverse

const array1 = ['one', 'two', 'three'];
console.log('array1:', array1);
//["one", "two", "three"]

const reversed = array1.reverse();
console.log('reversed:', reversed);
//["three", "two", "one"]

// Careful: reverse is destructive -- it changes the original array.
console.log('array1:', array1);
//["three", "two", "one"]
Posted by: Guest on November-21-2020
0

reverse array in javascript

const reverseArray = arr => arr.reduce((acc, val) =>  [val, ...acc], [])
Posted by: Guest on September-19-2020
-1

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;
}
Posted by: Guest on May-11-2021

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