is-fibonacci

Check if a number is in the Fibonacci sequence

Gotchas

Only the first twenty Fibonacci numbers are used. Feel free to replace the algorithm as long as it is fast and synchronous.

Installation

Install with component(1):

$ component install hkjels/is-fibonacci

API

var isFibonacci = require('is-fibonacci');

if (isFibonacci(5)) {
  console.log('Five is a fibonacci number');
}

License

MIT