A hash table is a data structure that contains key/value pairs. Time complexity-wise, it is great to search for a particular key for its value, adding and deleting data (O(1)). There are times that collisions occurs which is another discussion. Basically, collisions is where keys are hashed to the same…

Testing code is easy to do and lets programmers know that their program is working properly. These tests occurs automatically when run so the programmer does not have to manually test using console.log() or debugger. Installing Jest To install Jest, type this to the console: The – –save-dev flag will…

There are many npm packages that lets programmers create emails to send to people automatically. I have used two that is worth mentioning because of ease of use: nodemailer and SendGrid. nodemailer nodemailer is a popular npm package. After installing the package, the package needs to be required before it…

There are two methods of authenticating a user to a web application: session cookies and JWT. Session cookies are easier to grasp than JWT but this method may cause problems down the line when the programmer starts creating apps that will be used by many users. The server is responsible…

This project had a steep learning curve. The module was a total mess because it started talking about the DOM rather than start off from the basic principles of the language. I see the reasoning behind it: the DOM is pretty hard to manipulate so the module creator thought it…

Before the first project due for Flatiron, there were many concepts that was tough to understand such as the self keyword, object relationships, and metaprogramming concepts. For me there is one concept that I have not fully understood yet, which is the regular expressions, or regex for short. Regex is…

My Ruby on Rails project is a simple take on project management. I know for sure that it still requires so much work to make a decent app to manage a project or many projects. From the CLI project to the Sinatra project, this was enjoyable to create and also…

The Sinatra Project required a little more brain power to get it working. I am glad that this project is over but there is still a question lingering about this technology in my mind: why was it named after Frank Sinatra. …

Why did I decide to learn software development? Good question but there is a better question: “Why did I not pursue software development?” What I mean by that is in the “dark ages” called college I studied programming. Before that, I was a music major and touched on computer science…