const array1 = ['a', 'b', 'c', 'd', 'e'];
// copy to index 0 the element at index 3
console.log(array1.copyWithin(0, 3, 4));
// expected output: Array ["d", "b", "c", "d", "e"]
// copy to index 1 all elements from index 3 to the end
console.log(array1.copyWithin(1, 3));
// expected output: Array ["d", "d", "e", "d", "e"]
const array1 = ['a', 'b', 'c', 'd', 'e'];// copy to index 0 the element at index 3console.log(array1.copyWithin(0, 3, 4));// expected output: Array ["d", "b", "c", "d", "e"]// copy to index 1 all elements from index 3 to the endconsole.log(array1.copyWithin(1, 3));// expected output: Array ["d", "d", "e", "d", "e"]