What I learned working at a mature startup that’s building new things but also has a ton of customers and products in production.

This post is a WIP.

The purpose of this article is to (1) provide a high level discussion of testing and (2) offer some practical examples and best practice for writing automated unit tests for React Application using Jest and Enzyme.

What is stress? Stress is your subconscious telling you that you have sh*t to do. Feeling stressed about your health? Go to the gym everyday. Feeling stressed about your financial situation? Get a more high paying job. If only things were that simple. In this post, I’m going to teach you how to get rid your stress by understanding where your stress is coming from, then come up with an action plan and execute actions to address the source of your stress. This is not another “top 10 things you can do to ….” article. I will be discussing specific algorithms and heuristics with roots in computer science and mathematics that can be followed for every step of your journey to eliminating the source of your stress.

The coding interviews / coding challenges are designed to assess how productive someone can be with the language. In contrast to the algorithm whiteboarding interview, which assesses how the candidate go about solving a problem, or the architecture design interview, which assesses how the candidate’s experience in system engineering and product design, the coding interview is is utilized by the company interviewing you to answer one question:

Can you be productive with JavaScript?

Linked list is like an array but more flexible. Elements in an array are stored contiguously in memory while linked lists are stored as nodes with two fields: current value and a pointer to the next thing in the list. We are going to implement linked list in JavaScript and go over some algorithms with the linked list.

We are going to go over a set of coding and whiteboard problems that would be asked during a coding interview. I’m drawing these problems from LeetCode and Cracking the Coding Interview. They are a sample of the medium and hard problems that require a bit of thinking and and familiarity with some fundamental data structures in computer science.