javascript loop through array backwards

let arr = [1, 2, 3];
arr.slice().reverse().forEach(x => console.log(x))

const array = ['alpha', 'beta', 'gamma'];

array.reduceRight((_, elem) => console.log(elem), null);
 Run code snippet

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

let arr = [1, 2, 3];

arr.slice().reverse().forEach(x => console.log(x))

let arr = [1, 2, 3];

arr.slice().reverse().forEach(x => console.log(x))
 Run code snippet

var arr = [1, 2, 3, 4, 5];
 
arr.slice().reverse()
    .forEach(function(item) {
            console.log(item);
        });

const array = ['alpha', 'beta', 'gamma'];
array.reduceRight((_, elem) => console.log(elem), null);

var arr = [1, 2, 3, 4, 5];
 
Object.keys(arr).reverse()
        .forEach(function(index) {
            console.log(arr[index]);
        });

const array = ['alpha', 'beta', 'gamma'];
array.reduceRight((_, elem) => console.log(elem), null);