javascript reverse array
var arr = [34, 234, 567, 4];
print(arr);
var new_arr = arr.reverse();
print(new_arr);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]how to reverse array in javascript
// reversing an array in javascript is kinda hard. you can't index -1.
// but i can show how you can do it in 4 lines.
var myArray = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10];
for (var i = myArray.length - 1; i > 0; i -= 1) {
myArray.shift();
myArray.push(i);
}
console.log(myArray); // output: [10, 9, 8, 7, 6, 5, 4, 3, 2, 1]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 javascript
const list = [1, 2, 3, 4, 5];
list.reverse();Copyright © 2021 Codeinu
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