To count all files in a directory in linux, simply cd to that directory and then run the following command: ls | wc -l Alternatively, you can select the directory by adding the directory to...

Python has four types of data collections. When to use which, and why we have four, can be confusing. In this guide I'll go through what each of the types are, and how to use them. The four...

Dictionaries are an important way to store data in Python. They let us store information as key value pairs which are indexed by key name rather than index like in Python Lists. In this guid...

Python lists are a fundamental data type in Python. They are similar to Arrays in other languages, such as Javascript. You can learn more about the main Python data structures here. To creat...

Sets in python provide a method to create a unique set of unordered items with no duplicates. Their main use case is for checking is an item exists in a set of items, which can be useful in...

Tuples are an important data structure in Python which are quite similar to Python lists. The main difference between tuples and lists, is tuples cannot be modified. Once it's created, it is...

In Redis, we use KEYS to retrieve specific keys we've defined in our database. For example, if we'd created a Redis key like this: set someKeyName someValue Then we could get that value by...

Redis hashes are a type of record stored in a Redis database. They are a little like JSON objects, and store data as key value pairs. They are mutable, so can be easily changed and updated d...

You're probably familiar with Javascript Objects - but did you know there is another way to create sets of data in Javascript, known as Maps? You might be using Javascript plain old objects...

As part of my continuous work to see how much I can do with just CSS (see other work such as the CSS only Minecraft Chicken), I decided to try and recreate Windows 98 using nothing else apar...

In a previous article, I covered how to insert items into an array at a specific index, so now let's look at how to delete items. Arrays, which are common data structures in Javascript, look...

With arrays, there are usually a set number of specific things you want to achieve. Below is a list of pretty much any action you would want to perform on an array, and how to do it in Javas...

Arrays are common data structures found in Javascript, which typically look a bit like this: let myArray = [ 'some', 'data', 'here' ] They act a lot like arrays found in other languages, an...

It is common in Node.js and other languages to run a script on a certain port. Since ports can come in and out of use, it's also common to get the following error: Error: listen EADDRINU...

In TypeScript, you might have noticed you can declare custom types in two different ways. One is with the interface keyword, and the other is with the type keyword. As such, you may find you...

Sometimes we all need a new start - and this goes for Redis too. There are many situations where you will want to entirely wipe all data from Redis. Fortunately, it's easy to wipe your Redis...

Sometimes, when we are making changes to a project in git, we realise we suddenly need to revert back to the last clean working directory version of our project - that meaning the version wi...

After creating an application in Vue, you'll often want it to consist of multiple views or pages. To do this, we need to use an additional package known as vue-router. Creating a simple Vue...

Have you ever been working on a project, ran a git pull only to realise you've majorly messed up? Now all your code has been overwritten with whatever was in your remote repository - and som...

Have you ever made some changes in git, and then changed the files permissions too, only to realise you only want to publish the changes to the files, and not the file permissions? Or maybe...

The spread operator, spread syntax or 3 dots (...), is a type of syntax in Javascript which is used by both function calls and in arrays/objects. It has a multitude of different uses, so let...

Vue is like any other tool we use on the web - your mileage will vary depending on how you use it. If you write poorly optimised code, you'll still get a slow website, even if Vue has lots o...

If you use Vue, you might be used to having to apply different classes to tags based on the logic in your code. That's because we might want to reactively update an elements class based on w...

Have you ever found a bug inducing line change in your code, and wondered who made the change to that line? Fortunately, git has a command for that! git blame lets you pick a file and show w...

Have you ever gone on a long holiday and wanted to check the updates your team have made since 2 weeks ago? Or maybe even in just the last week. Sure, you could trawl through PRs, but there...

Have you ever made a commit message with git commit like this? git commit -m "Fixed CSS" Only to remember the hundreds of articles you've read on writing "real" commit m...

Have you ever been working on a project in git and ran into an error telling you that you can't use git pull because you have local changes? error: Untracked working tree file 'App.vue' woul...

I love 3d effects on the internet, and they're increasingly all over the place. They can add an extra dimension to a website that helps to catch a user's attention. I have previously covered...

In a previous article, I covered the concept of optional parameters in TypeScript. In this guide, we used the ? question mark symbol to denote if a function's argument was optional. In this...

When we make a Node.js application, it's pretty typical that we also create a .env file that stores all of our environment variables. This file is typically private, and can be used to store...