The ultimate guide to recursion interviews in JavaScript. Developed by FAANG engineers. Practice with real-world interview questions and get interview-ready in just a few hours.

If you’ve ever struggled with solving problems using recursion, or if you have to brush up your skills for an interview, this course is for you.

We'll start with the basics of what recursion is and why it’s important before diving into practicing solving actual questions. You’ll have access to detailed explanations and visualizations for each problem to help you along the way. 

By the time you have completed this course, you’ll be able to use all the concepts to solve complex real-world problems. We hope that through practicing recursion, you will be able to ace all recursion related questions in interviews at top tech companies.

Recursion for Coding Interviews in JavaScript

# What is Iteration?
Iteration means repeating some steps to achieve the desired outcome. In computer programming, this may involve a mechanism, such as a *loops*.

Iterative code is a block of code that runs in a loop. In other words, the same code is repeated over and over again. The idea is similar to that of recursion.

As we are learning recursion, it is important to have an overview of iteration as well. You might have written simple programs that involve *iterating* over an array, list, etc. 

> The concept of *Recursion* and *Iteration* is to execute a set of instructions repeatedly. 

However, the difference between them is that recursion is simply a *method call* in which the method being called is the same as the one making the call. Iteration, on the other hand, is when a loop is repeatedly executed until a certain condition is satisfied. 

> Both recursion and iteration depend on a **condition** which determines whether to stop execution or continue it.

# Format of an Iterative Function
Each iterative function consists of a loop and a conditional statement that determines whether to continue iteration or to stop.


Here, we'll learn about the definition of Iteration as well as the format and the syntax of an iterative function

Recursion Fundamentals

Iteration Vs Recursion

Recursion with Numbers

Recursion with Strings

Recursion with Arrays

Recursion with Data Structures

Conclusion

Overview of Iterative Functions

What is Iteration?