Working With JavaScript Higher Order Functions

In this lab, you will be working with JavaScript Higher Order Functions. A higher order function is a function that takes another function as an argument or returns a function. You will be working with the following higher order functions that are built into Javascript:

• Map
• Filter
• Reduce

Learning Objectives

Upon completion of this lab, you will be able to:

• Use the map method to iterate over an array and return a new array with the resulting values of the operation performed on each element.
• Use the filter method to iterate over an array and return an array with the resulting values that returned true based on the condition performed on each element.
• Use the reduce method to iterate over an array and return the resulting singular value due to the reducer function and the initial value provided.

Intended Audience

• Beginners learning front-end development
• Software Engineers who need to learn front-end technologies to expand their skillset

Prerequisites

The following content can be used to fulfill the prerequisite:

• Introduction to JavaScript Higher Order Functions: Map & Filter
• Introduction to JavaScript Higher Order Functions: Reduce