Lets Create An Array of Integers
let numbers = [5, 1, 7, 3];
console.log(numbers);

[ 5, 1, 7, 3 ]

1. Finding the length of the Array
let lengthOfArray = numbers.length;
console.log(lengthOfArray);

4

2. Sortng the array in ascending order
numbers.sort();
console.log(numbers);

[ 1, 3, 5, 7 ]

3. Adding new element in last of the index
numbers.push(6);
console.log(numbers);

[ 1, 3, 5, 7, 6 ]

4. Adding new Element in starting of the array
numbers.unshift(8);
console.log(numbers);

[ 8, 1, 3, 5, 7, 6 ]

5. Removing or Deeleting a first element of the array
numbers.shift();
console.log(numbers);

[ 1, 3, 5, 7, 6 ]

6. Removing or Deleting a last element of the array
numbers.pop();
console.log(numbers);
[ 1, 3, 5, 7 ]

7. Finding element of the targeted index

let index = 2;
console.log(At index of ${index} element is ${numbers.at(index)});

At index of 2 element is 5

8. Merging two or more array
const array1 = [1,2,3,4,5];
const array2 = [6,7,8,9];
const newArray = array1.concat(array2);
console.log(newArray)

[1, 2, 3, 4, 5 ,6, 7, 8, 9]