JavaScript: Calculate the greatest common divisor between two or more numbers/arrays
JavaScript fundamental (ES6 Syntax): Exercise-223 with Solution
Write a JavaScript program to calculate the greatest common divisor between two or more numbers/arrays.
- The inner _gcd function uses recursion.
- Base case is when y equals 0. In this case, return x.
- Otherwise, return the GCD of y and the remainder of the division x/y.
Sample Solution:
JavaScript Code:
//#Source https://bit.ly/2neWfJ2
const gcd = (...arr) => {
const _gcd = (x, y) => (!y ? x : gcd(y, x % y));
return [...arr].reduce((a, b) => _gcd(a, b));
};
console.log(gcd(8, 36));
console.log(gcd(...[12, 8, 32]));
Sample Output:
4 4
Pictorial Presentation:
Flowchart:

Live Demo:
See the Pen javascript-basic-exercise-223-1 by w3resource (@w3resource) on CodePen.
Improve this sample solution and post your code through Disqus
Previous: Write a JavaScript program that initializes an array containing the numbers in the specified range where start and end are inclusive and the ratio between two terms is step. Returns an error if step equals 1.
Next: Write a JavaScript program to remove HTML/XML tags from string.
What is the difficulty level of this exercise?
Test your Programming skills with w3resource's quiz.
- Weekly Trends
- Python Interview Questions and Answers: Comprehensive Guide
- Scala Exercises, Practice, Solution
- Kotlin Exercises practice with solution
- MongoDB Exercises, Practice, Solution
- SQL Exercises, Practice, Solution - JOINS
- Java Basic Programming Exercises
- SQL Subqueries
- Adventureworks Database Exercises
- C# Sharp Basic Exercises
- SQL COUNT() with distinct
- JavaScript String Exercises
- JavaScript HTML Form Validation
- Java Collection Exercises
- SQL COUNT() function
- SQL Inner Join