-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathrecursion.js
More file actions
34 lines (29 loc) · 820 Bytes
/
Copy pathrecursion.js
File metadata and controls
34 lines (29 loc) · 820 Bytes
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
// Complete the following functions.
const nFibonacci = (n) => {
// fibonacci sequence: 1 2 3 5 8 13 ...
// return the nth number in the sequence
return n <= 1 ? 1 : nFibonacci(n - 1) + nFibonacci(n - 2);
};
const nFactorial = (n) => {
// factorial example: !5 = 5 * 4 * 3 * 2 * 1
// return the factorial of `n`
return n <= 1 ? 1 : n * nFactorial(n - 1);
};
const checkMatchingLeaves = (obj) => {
// return true if every property on `obj` is the same
// otherwise return false
const array = [];
const rf = (...args) => {
Object.values(...args).forEach((v) => {
return typeof v === 'object' ? rf(v) : array.push(v);
});
};
rf(obj);
return new Set(array).size === 1;
};
/* eslint-enable no-unused-vars */
module.exports = {
nFibonacci,
nFactorial,
checkMatchingLeaves
};