Basic Recursion Example in JavaScript

Problem:  I've been having to write solutions which required some sort of recursion.  The last recursion assignment I had to write was a homework assignment about 10 years ago. I remembered the concept, but forgot how to write it.

Solution:  Here’s a simple example of recursion. I start with an array, and after I fire the function, I remove that index from the array, so it shrinks. Once the array is empty, recursion stops.  Pretty straight forward!

Code:

let books = ['Chosen by God', 'Holiness of God', 'Essential Truths', 'Justified by Faith'];

function readBooks(b){

while(b.length > 0){

console.log('I\'v read ' + b[0]);

b.shift();

readBooks(b);

}

}

readBooks(books);