

- Trending Categories
Data Structure
Networking
RDBMS
Operating System
Java
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who
Check whether a number is a Fibonacci number or not JavaScript
We are required to write a JavaScript function that takes in a number and returns a boolean based on the fact whether or not it comes in the fibonacci series.
For example −
If the function call is like this −
fibonacci(12); fibonacci(89); fibonacci(55); fibonacci(534);
Then the output should be −
False true true false
Now, let’s write a recursive solution to this problem −
Example
const fibonacci = (query, count = 1, last = 0) => { if(count < query){ return fibonacci(query, count+last, count); }; if(count === query){ return true; } return false; }; console.log(fibonacci(12)); console.log(fibonacci(55)); console.log(fibonacci(89)); console.log(fibonacci(534));
Output
The output in the console will be −
false true true false
- Related Questions & Answers
- How to check whether a number is finite or not in JavaScript?
- Check if number falls in Fibonacci series or not - JavaScript
- Program to check whether a number is Proth number or not in C++
- C++ Program to Check Whether a Number is Prime or Not
- C++ Program to Check Whether a Number is Palindrome or Not
- C Program to Check Whether a Number is Prime or not?
- Java Program to Check Whether a Number is Prime or Not
- Write a Golang program to check whether a given number is prime number or not
- How to check whether a number is prime or not using Python?
- Check whether N is a Dihedral Prime Number or not in Python
- Check whether the given number is Euclid Number or not in Python
- Write a Golang program to check whether a given number is a palindrome or not
- Program to check whether given number is Narcissistic number or not in Python
- Check if a number is a Krishnamurthy Number or not in C++
- C# Program to Check Whether the Entered Number is an Armstrong Number or Not
Advertisements