JavaScript objects are fundamental. Taking the time to dig deeper into them will result in cleaner and more performant code.

Note: This article assumes that you know the basics of objects. If you want a quick refresher on objects, check out The Chronicles of JavaScript Objects by Arfat Salman.

Let’s get cracking!

Agenda

• Read-Only Objects
• Shallow vs. Deep
• Objects As Primitives
• Objects vs. Maps

Read-Only Objects

Suppose we want to create an enum to represent the cardinal directions:

However, existing properties/keys can be altered and new properties can be added into DIRECTIONS. …

Introduction

Reading and writing to disk and navigating the filesystem is a staple in any language. Let’s learn how to do it in Go with os, a package that lets us interact with operating system functionality.

Agenda

Files
   Creating & Opening Files
   Reading Files
   Writing & Appending to Files
   Removing FilesDirectories
   Creating Directories
   Navigating & Reading Directories
   Walking through a Directory

Files

Creating & Opening Files

File creation can be done with os.Create and opening a file is done with os.Open. Both take in a file path and return a File struct and a non-nill error if unsuccessful.

If you call os.Create on an existing…

Introduction

When building a website, it is important to make sure it works consistently on all the major browsers. After all, each browser is unique in the development features it provides.

For example, check this diagram out:

Introduction

Algorithms & Data Structures interviews are notoriously difficult. Coming up with an optimal approach to a problem is already time-consuming. So, if you become stuck on the implementation, you may not even finish the problem! As a result, understanding how to use each of the core data structures and knowing the Python-specific caveats about them will make the implementation seamless.

Agenda

• Stack
• Queue
• Priority Queue/Heap
• Dictionary (Default Dict)

Stack

Huge shoutout to Codú Community for inspiring this blog. All the code for this project is linked on GitHub.

Introduction

There are multiple ways of optimizing server performance. One way is to make the client do some of the work. Consider uploading images for profile pictures. Since high-quality images take up several MB, it is costly to send them over the network to the server. Also, since profile pictures don’t need to be extremely detailed, it would be nice to compress them and save space. Thankfully, with HTML Canvas, we can compress our images right upon an upload by resizing them…

Introduction

Although building software projects can be challenging, deployment can be a pain. In fact, in situations where speed is necessary, deployment must be seamless. For that reason, I want to show you how to deploy Redis for free and use Redis remotely. Redis Labs, a Redis cloud hosting service, offers a free plan with simple deployment steps. We will leverage that plan to create an instance and integrate that instance with Node.js.

Walk Through

Do everything quickly and well.
― G.I. Gurdjieff

To start, head over to https://redislabs.com/ and sign up.

Introduction

Asynchronous programming is incredible! With it, we can run our IO-intensive tasks without having to block the execution of other code. However, in situations where the code after a blocking task depends on the task’s result, we must wait. Now, imagine if the blocking task took a long time to finish or it never finished. This could be problematic in the context of the application. We can solve this issue by setting a time limit on our task. If our task doesn’t finish in the span of the time limit, we can return a failure value instead. Let me elaborate.

Concept

…

Introduction

Performance is a must when it comes to building software. However, in certain situations, the speed to set up and integrate new services for proof of concept evaluation or infrastructure is overlooked. Specifically, in the realm of databases, there are many options, but I find Deta to be most seamless to set up and use. Deta offers Deta Base (I will refer to it as Base), a NoSQL data store optimized for developer simplicity. In this article, I aim to show how to set up a Deta project and interact with your Base to store and manipulate Pokemon data.