Ask any question about JavaScript here... and get an instant response.

How many types of array methods are there?

Asked on Nov 14, 2025

Answer

JavaScript provides a variety of array methods to manipulate and interact with arrays. These methods can be categorized based on their functionality, such as mutator methods, accessor methods, and iteration methods.

<!-- BEGIN COPY / PASTE -->
        // Example of different types of array methods

        // Mutator method: changes the array
        const array1 = [1, 2, 3];
        array1.push(4); // [1, 2, 3, 4]

        // Accessor method: does not change the array
        const array2 = [1, 2, 3];
        const lastElement = array2.slice(-1); // [3]

        // Iteration method: executes a function on each element
        const array3 = [1, 2, 3];
        array3.forEach(element => console.log(element)); // Logs 1, 2, 3
        <!-- END COPY / PASTE -->

Additional Comment:

Mutator methods modify the original array (e.g., "push", "pop", "shift", "unshift", "splice").
Accessor methods return a new array or value without altering the original array (e.g., "slice", "concat", "includes").
Iteration methods perform operations on each array element (e.g., "forEach", "map", "filter", "reduce").

✅ Answered with JavaScript best practices.

Ask any question about JavaScript here... and get an instant response.

How many types of array methods are there?

Asked on Nov 14, 2025

Answer

The Q&A Network