JavaScript Arrays

Arrays in JavaScript are a primitive data type to store values that are more than one within one variable.

Example:


            let cars
            =
            ["Thar", "Scorpio", "BMW"];

Array Methods

JavaScript provides a lot of methods for array manipulation.

The length method returns the size of an array.

Example:


            let myArr
            =
            ["Thar", "BMW", "Audi"];

            console.log(myArr.length);

Output:

3

The push() method is used to insert an element to the end of an array.

Example:


            let myArr
            =
            ["Thar", "Audi", "BMW"];

            myArr.push("Scorpio");

            console.log(myArr);

Output:

[ 'Thar', 'Audi', 'BMW', 'Scorpio' ]

The pop() function is employed to delete the last element of an array.

Example:


            let myArr
            =
            ["Thar", "Audi", "BMW"];

            myArr.pop();

            console.log(myArr);

Output:

[ 'Thar', 'Audi' ]