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Copy pathrecursion.js
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145 lines (96 loc) · 1.79 KB
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// Complete the following functions.
const nFibonacci = (n) => {
// fibonacci sequence: 1 2 3 5 8 13 ...
// return the nth number in the sequence
if (n === 0 || n === 1) {
return 1;
}
return nFibonacci(n - 1) + nFibonacci(n - 2);
};
console.log(nFibonacci(10));
const nFactorial = (n) => {
// factorial example: !5 = 5 * 4 * 3 * 2 * 1
// return the factorial of `n`
if (n === 1) {
return n;
}
return n * nFactorial(n - 1);
};
console.log(nFactorial(5));
const arrs = [
1,
1,
1,
[
[
1,
1,
[
1,
[
1,
[
[
1,
],
2,
],
1,
],
1,
],
],
1,
1,
],
1,
1,
[
1,
1,
1,
],
];
/* Extra Credit */
const checkMatchingLeaves = (obj) => {
// return true if every property on `obj` is the same
// otherwise return false
let ents = Object.entries(obj);
console.log(ents);
console.log(Object.values(obj));
console.log(obj);
console.log(Object.values(obj.child));
// console.log(obj);
if (obj.child) {
if (Object.values(obj) !== Object.values(obj.child)) {
return false;
} else {
if (obj.child.child) {
checkMatchingLeaves(obj.child);
} else {
return true;
}
}
} else {
return console.log('Only one value: ', true);
}
};
console.log(checkMatchingLeaves([
[1],
[
[1]
],
[
[1]
]
]));
//console.log(checkMatchingLeaves({1:1, 1:1, 1:1}));
//console.log(checkMatchingLeaves({x:{num:2}, a:1, b:1,}));
//console.log(checkMatchingLeaves(arrs));
// console.log(checkMatchingLeaves({[1],{2}, 1}));
/* eslint-enable no-unused-vars */
module.exports = {
nFibonacci,
nFactorial,
checkMatchingLeaves,
};