Learn JavaScript, Functions, Return Statement Explained, Codecademy Learn Programming with JS ES6

In this JavaScript Walkthrough from Learn JavaScript, Functions, Return Statement Explained, on Codecademy, we learn that functions by default return undefined. If we want it to return a value, then it is important that we give our function a return statement. A return statement allows us to return a value from our function. If we create a function without a return value and call the function in a console.log(), then undefined would be logged out. If we give our function a return value, then calling the function in a console.log would log out the return value. Understanding Return Statements in JavaScript is key in developing into a great developer. Make sure to understand how return statements work in JavaScript before moving on. It is helpful in JavaScript, and in many other languages!

In this Codecademy JavaScript tutorial, “Learn JavaScript, Functions, Return Statement Explained,” we delve into the power of the return statement. By default, functions in JavaScript return “undefined.” But if we want our functions to output a specific value, we must use the return statement.

The tutorial begins by highlighting the importance of return statements in JavaScript. It explains that without a return statement, a function would return undefined, which could be problematic. However, by using a return statement, we can provide a specific output for our function.

The tutorial then shows us how to use the return statement to output values from our function. We learn that the return statement can be used with any data type and that we can even return objects and arrays from our functions.

The tutorial emphasizes that return statements are critical to our ability to write reusable functions. By allowing us to return specific values from our functions, we can use the output of one function as the input of another, creating a chain of functions that work together to solve a larger problem.

The tutorial also provides examples of how to use return statements in real-world scenarios. For example, it demonstrates how to write a function that calculates the average of an array of numbers using the return statement.

Finally, the tutorial covers some best practices for using return statements. For instance, it advises us to avoid having multiple return statements in a single function, as this can make our code harder to read and debug.

In conclusion, understanding the return statement is a crucial component of becoming a proficient JavaScript programmer. This tutorial from Codecademy’s JavaScript course provides a comprehensive guide to using the return statement and highlights its importance in creating reusable and maintainable code. Make sure to grasp the concept of return statements before moving on to more advanced topics in JavaScript!