with() method - It is used to assign an existing array to a new array
var arr = [1, 6, 3, 4, 5];
var newArr = arr.with(1, 2);
console.log(newArr); // [1, 2, 3, 4, 5]
toSorted() method - It is used to sort the elements of an array.
var arr = [1, 5, 3, 2, 4];
var sortedArr = arr.toSorted();
console.log(sortedArr); // [1, 2, 3, 4, 5]
toReversed() method - It is used to reverse the order of the elements of an array.
var arr = [1, 5, 3, 2, 4];
var reversedArr = arr.toReversed();
console.log(reversedArr); // [5, 4, 3, 2, 1]
toSpliced() method - It is used to remove and/or add elements to an array.
var arr = [1, 5, 3, 2, 4];
var newArr = arr.toSpliced(0, 2);
console.log(newArr); // [3, 2, 4]