javascript reverse array
var arr = [34, 234, 567, 4]; print(arr); var new_arr = arr.reverse(); print(new_arr);
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]
javascript reverse array
const array1 = ['one', 'two', 'three']; // expected output: "array1:" Array ["one", "two", "three"] const reversed = array1.reverse(); // expected output: "reversed:" Array ["three", "two", "one"]
Source: developer.mozilla.org
reverse array javascript
let arr = [1,2,3] let newArr = arr.slice().reverse(); //returns a reversed array without modifying the original console.log(arr, newArr) //[1,2,3] [3,2,1]
Source: stackoverflow.com
array reverse in javascript
var arr = [1, 2, 3, 4, 5, 6, 7]; console.log (arr.reverse ()); for (i = 0; i < arr.length / 2; i++) { var temp = arr[i]; temp =arr[arr.length - 1 - i]; temp = temp; } console.log (arr);
reverse array in js
const array1 = ['one', 'two', 'three']; console.log('reversed:', array1.reverse()); // Note that reverse() is destructive -- it changes the original array. console.log('array1:', array1); // expected output: "array1:" Array ["three", "two", "one"]