Answers for "reverse array in javascript"

21

reversing an array in js

var arr=[1,2,5,6,2]
arr.reverse()
Posted by: Guest on June-26-2020
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
10

.reverse javascript

const array1 = [1,2,3,4];
console.log('array1:', array1);
//"array1:" Array [1, 2, 3, 4]

const reversed = array1.reverse();
console.log('reversed:', reversed);
//"reversed:" Array [4, 3, 2, 1]

// Careful: reverse is destructive -- it changes the original array.
console.log('array1:', array1);
//"array1:" Array [4, 3, 2, 1]
Posted by: Guest on September-21-2021
1

js reverse nested array

var reversed = array.map(function reverse(item) {
    return Array.isArray(item) && Array.isArray(item[0]) 
               ? item.map(reverse) 
               : item.reverse();
});
Posted by: Guest on April-27-2020
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
0

reverse array in javascript

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

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