Mastering the art of counting down using a forEach loop in JavaScript

Trying to iterate through a list of objects, I can't index it, but can use forEach. My issue is I need to start from the last object and go to the first, but unsure how to achieve that with the forEach function. If I used a for loop, it would be like this:

var test = [1,2,3,4,5]
   for (let i = test.length; i > -1; i=i-1) {
       console.log(test[i])
   }

However, due to the limitation of not being able to index, I need assistance. Can you provide guidance?

Answer №1

To change the order of the array, you can use the method reverse() before the loop:

var exampleArray = [1,2,3,4,5]
 
exampleArray.reverse().forEach(element => console.log(element));

Answer №2

Check out the solution to your issue below:

let numbers = [5, 4, 3, 2, 1];
    for (let i = numbers.length - 1; i >= 0; i--) {
      console.log(numbers[i]);
    } 

Answer №3

A modified version of the method used by Severin.Hersche is shown below:

let numbers = [5, 4, 3, 2, 1];
for (let i = numbers.length; i--;) {
    console.log(numbers[i]);
}

Answer №4

Kindly make use of the following code snippet.

let numbers = [10, 20, 30, 40, 50];
numbers.forEach((number, idx) => console.log(numbers[numbers.length - idx - 1]));

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