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recursion.js
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55 lines (42 loc) · 1.1 KB
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// to test these problems you can run 'node recursion.js' in your terminal
// Problem 1:
// let n = 1;
// while (n <= 10) {
// console.log('While Loop', n);
// n++;
// }
// write a recursive - function called countToTen that mimics the while loop above.
// code here
let n = 1;
const countToTen = () => {
if (n > 10) {
return;
}
console.log(n);
return countToTen(++n);
};
// when you code is ready, un-comment the next line and run the file
console.log(countToTen());
/* ================ Next Problem ================= */
// Problem 2:
// const factorial = n => {
// let result = 1;
// for (let i = 2; i <= n; i++) {
// result *= i;
// }
// return result;
// };
// console.log(factorial(5));
const factorial = n => {
//base case
if (n === 0) {
return 1;
}
//return fuction
return n * factorial(n - 1);
};
console.log(factorial(5));
// write the above function in a recursive way.
// when your code is ready, un-comment the next line and run the file
//console.log(recursiveFactorial());
//left the above commented out since it wasn't returning output without errors??