The four basic queries that you can use to create a RESTful api using Node.js and PostgreSQL — Introduction If you are writing a RESTful api in Node.js you’ll have to decide between a relational database or a non-relational database. If you decided on the former, you’ll need to know how to write basic CRUD queries so that your api can talk to your database in a meaningful way…

Introduction Hi everyone, in this blog I’m going to teach you how to solve a common interview question called “Valid Parentheses” using JavaScript. Although this question is considered easy, I found it quite tricky to get the optimal solution the first time I encountered it. So let’s dive in! Note: The…

Introduction If you’re an engineer preparing for tech interviews chances are you’re going to need to know how to implement a stack. In this blog I’m going to teach you how to solve a common leetcode question called Min Stack that will hopefully make implementing a stack a lot less…

Introduction A very common coding interview question that you’ll likely encounter in the job search is the classic question of “Can you reverse a linked list?”. In this blog I am going to give you a run down on how to reverse a linked list in place, using an iterative solution…

Introduction If you’ve never learned a low level programming language before you may have never noticed that there are two types of arrays. For example, in JavaScript arrays are dynamic by default, but in a language like C++ you have access to both types. …

Introduction If you’re new to C++ you may have wondered why C++ has both classes and these weird things called structs. The difference between a class and a struct is that an instance of a struct is a variable, while an instance of a class is an object. You can…

Introduction If you are completely new to C++ you may have run into the seemingly odd data type called an enum or an enumeration. Most tutorials I have seen tend to gloss over enums as just a collection of constants, but they never really talk about their use cases. …

Introduction If you are like me you may have recently taken an interest in the ever growing field of augmented reality. Whether you’ve played the hit game Pokemon GO, or used a Snapchat face filter you’ve likely encountered AR in some shape or form, and you may have wondered about…

Introduction If you’re brand new to web development with Python and Flask, you may be confused on how to debug your code in an IDEless environment. You may know Python, but you’re having trouble adjusting to the way errors are handled in both Flask and web development in general. …