Michelle Lau – Medium

Nov 15, 2021

Using Recursion on a Medium Level LeetCode: Permutations

In this series, I will explain my thought process of figuring out one way to solve a particular LeetCode problem and then provide the JavaScript code. 46. Permutations The objective is to find out all combinations of a certain array of numbers. Input: nums = [1,2,3] Output: [[1,2,3],[1,3,2],[2,1,3],[2,3,1],[3,1,2],[3,2,1]] I’m writing…

Leetcode

3 min read

Leetcode

3 min read

Nov 11, 2021

Using Set Length with an Easy Level LeetCode: Contains Duplicate

In this series, I will explain my thought process of figuring out one way to solve a particular LeetCode problem and then provide the JavaScript code. 217. Contains Duplicate In this problem, the objective is to return true if any value is presented in the array at least twice and…

Algorithms

2 min read

Using Set Length with an Easy Level LeetCode: Contains Duplicate

Algorithms

2 min read

Nov 11, 2021

Using a Dictionary with a Medium Level LeetCode: Find the Duplicate Number

In this series, I will explain my thought process of figuring out one way to solve a particular LeetCode problem and then provide the JavaScript code. 287. Find the Duplicate Number The objective is to return whatever number is the repeated number in an array. …

Algorithms

2 min read

Using a Dictionary with a Medium Level LeetCode: Find the Duplicate Number

Algorithms

2 min read

Nov 23, 2020

A Quick Rundown of How to Use “Guard” and “Guard let”

So you’re learning Swift and you’ve wrapped your head around unwrapping optionals (ba dum tss). One of the next concepts you’ll most likely encounter is the guard statement. Let’s see a real-world example of how to use it. This is a login screen for an app that uses Firebase Authentication…

Swift

3 min read

A Quick Rundown of How to Use “Guard” and “Guard let”

Swift

3 min read