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The String lastIndexOf() method
Find out all about the JavaScript lastIndexOf() method of a string
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The String indexOf() method
Find out all about the JavaScript indexOf() method of a string
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The String includes() method
Find out all about the JavaScript includes() method of a string
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UNIX Editors
A brief guide to the UNIX editors
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The String endsWith() method
Find out all about the JavaScript endsWith() method of a string
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The String concat() method
Find out all about the JavaScript concat() method of a string
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The String codePointAt() method
Find out all about the JavaScript codePointAt() method of a string
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The Node.js Runtime v8 options list
All the possible options you can use when you start a Node.js program
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The String charCodeAt() method
Find out all about the JavaScript charCodeAt() method of a string
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The String charAt() method
Find out all about the JavaScript charAt() method of a string
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The ES2019 Guide
ECMAScript is the standard upon which JavaScript is based, and it's often abbreviated to ES. Discover everything about ECMAScript, and the features added in ES2019
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How I run little JavaScript snippets
The tools I use to run my JavaScript when testing or trying out things
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How to exit Vim
Let me help you finally exit Vim!
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The String search() method
Find out all about the JavaScript search() method of a string
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The String replace() method
Find out all about the JavaScript replace() method of a string
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Configuring the macOS command line
How to set up the macOS terminal from zero to a perfect tool for you day to day development
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Configuring VS Code
How to set up VS Code from zero to a perfect tool for JavaScript development
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Everyone can learn programming
Just like everyone can learn the math basics. Or just like everyone can learn how to drive a car, or learn how to use a smartphone
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Do I need a degree to be a programmer?
No. I have a degree and I can safely say that a degree is not a pre-requisite to being a programmer.
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Why interview questions for programming jobs are so difficult?
I have to say I hate programming interview questions. Why they are so difficult?
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Why use a preview version of a browser?
Find out why is it a good thing to use Chrome Canary, Firefox Nightly or Safari Technology Preview
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How to list all methods of an object in JavaScript
Find out how to get an array with a JavaScript object methods
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Does programming require knowing math?
You can be a great programmer even if you were bad at math in school
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What is pnpm?
Introduction to pnpm, the drop in npm replacement that saves you disk space
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Shell, watch file content as it populates
A brief guide to the `tail` UNIX command line tool
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How to solve the unexpected identifier error when importing modules in JavaScript
My advice on solving this problem I encountered
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The node_modules folder size is not a problem. It's a privilege
My thoughts on the node_modules folder size debate
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JavaScript Generators Tutorial
Generators are a special kind of function with the ability to pause itself, and resume later, allowing other code to run in the meantime.
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Should I write comments?
Thoughts on commenting code, and on commenting the right way
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How to learn how to learn
Notes and observations on how to learn things quicker and in a more effective way
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React, how to transfer props to child components
How to pass all props a components gets from its parent, to its own children, in React
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Conditional rendering in React
How to dynamically output something vs something else in React
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How to return multiple elements in JSX
How to workaround that the limitation that JSX has when having to return multiple elements from a component
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How to handle errors in React
Best practices to handle errors in React using error boundaries
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Casting in JavaScript
How to cast from one data type to another in JavaScript
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How to style DOM elements using JavaScript
The ways you can apply styling to elements on the page, dynamically, using plain JavaScript
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Loosely typed vs strongly typed languages
The key differences between using a loosely typed language compared to a strongly typed languages
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Passing undefined to JavaScript Immediately-invoked Function Expressions
Sometimes you can spot old code in the wild where `undefined` is passed to a function. Why?
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How to pass a parameter to event handlers in React
Find out how to pass a parameter to onClick events for example, without invoking the method on mount
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On going independent as a developer
Some of my thoughts on the topic of working independently as a software developer
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The Fish Shell
A user introduction to the Fish shell
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Introduction to Bash Shell Scripting
A detailed overview to scripting the Bash Shell
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The Bash shell
A user introduction to the Bash shell
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How to continuously rotate an image using CSS
How to use CSS Animations to continuously rotate an image
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Dynamically select a method of an object in JavaScript
Learn how to access a method of an object dynamically in JavaScript
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The TypeScript Guide
TypeScript is one of the fastest rising technologies of 2018. It's everywhere, everyone talks about it. This article guides you towards understanding its key concepts
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How to estimate programming time
The fine art of estimating how long it takes to create software
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How to discover a bug using git bisect
How I debug almost all problems that involve a long history of changes, tracked using Git, and discover when you introduced a bug in your code
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The pros of using a boring stack
Why I think choosing a boring stack is important in programming
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The definitive guide to debugging JavaScript
Learn how to debug JavaScript using the browser DevTools debugger
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My notes on the Deep Work book
In this post I distill the key concepts that I learned from the Deep Work book by Cal Newport. I added some of my personal observations and experience.
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Testing React components
Test your first React component using Jest and `react-testing-library`
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Destructuring Objects and Arrays in JavaScript
Learn how to use the destructuring syntax to work with arrays and objects in JavaScript
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Work with objects and arrays using Rest and Spread
Learn two modern techniques to work with arrays and objects in JavaScript
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Introduction to PeerJS, the WebRTC library
Working with WebRTC can be hard. PeerJS is an awesome library that makes WebRTC easier
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React Render Props
Learn how Render Props can help you build a React application
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React Portals
Find out how to use React Portals
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React StrictMode
What is React StrictMode and how to use it
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What is Serverless?
What is serverless and why should you care?
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Netlify Lambda Functions Tutorial
How to use Netlify Lambda Functions and add dynamic processing to JAMstack sites
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Handling Forms in React
How to handle forms in a React application
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Using SASS in React
How to use SASS to style a React application
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CSS in React
How to use CSS to style a React application
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How to install React
How to install React on your development computer
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Server Side Rendering with React
What is Server Side Rendering? How to do it with React?
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How I added Dark Mode to my website
The step by step instructions to make 2 versions of your website, to make it perfect for both day and night use
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Code Splitting in React
What is Code Splitting and how to introduce it in a React app
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React: Presentational vs Container Components
The difference between Presentational and Container Components in React
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React Concept: Composition
What is composition and why is it a key concept in your React apps
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Introduction to create-react-app
create-react-app is the easiest way to start up a React application
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How to only accept images in an input file field
When adding a file field to a form, you might want to limit the selector to images
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Introduction to React Hooks
Learn how Hooks can help you build a React application
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React Concept: Purity
What is purity, a pure function and a pure component
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React Concept: Immutability
What is immutability? And how does it fit in the React world?
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React Lifecycle Events
Find out the React Lifecycle events and how you can use them
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JSON Web Token (JWT) explained
Learn the basics of JWT and how to use them
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React Higher Order Components
Find out what Higher Order Components are and how they are useful when programming a React application
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The HTTP/2 protocol
A detailed description of how the HTTP/2 protocol works
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call() and apply() in JavaScript
Find out how to use call() and apply() and their difference in JavaScript
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Unidirectional Data Flow in React
Working with React you might encounter the term Unidirectional Data Flow. What does it mean?
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How to reference a DOM element in React
Find out how to ref a DOM element in React
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How to count the number of properties in a JavaScript object
Find out how to calculate how many properties has a JavaScript object
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How to sort an array of objects by a property value in JavaScript
Find out how to sort an array of objects by a property value in JavaScript
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How to set default parameter values in JavaScript
Find out how to add a default parameter value into a JavaScript function
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How to encode a URL with JavaScript
You might need to encode a URL if you are sending it as part of a GET request, for example.
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How to empty a JavaScript array
Given a JavaScript array, see how to clear it and empty all its elements
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How to replace a DOM element
Given a DOM element, how do you replace it with another?
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How to get the scroll position of an element in JavaScript
When you are building a user interface in the browser, you might have an element which can be scrolled, and it's a common need to know the horizontal and vertical scrolling it currently has.
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How to merge two objects in JavaScript
Find out how to merge 2 JavaScript objects and create a new object that combines the properties
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Zeit Now Tutorial
Find out how to use the Now platform created by Zeit
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Introduction to Gatsby
Gatsby is a platform for building apps and websites using React
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What is a CDN?
Discover what is a CDN and why it's useful
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The social proof principle
What is the social proof principle? How can it help you grow your business?
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What is the JAMstack?
Find out what does JAMstack mean, and the advantages of this set of technologies
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Use the Chrome DevTools to debug a Node.js app
When we're programming it's common to have the need to quickly test and do some experiments with a piece of code.
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How to use MongoDB with Node.js
In this tutorial I'll show you how to interact with a MongoDB database from Node.js
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The scarcity principle applied to software products
What is scarcity? How can it help you grow your software-based business?
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How MongoDB is different from a SQL database
Generally speaking there are 2 major types of databases: SQL databases, and NoSQL databases
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The MongoDB basics tutorial
MongoDB is a database, the part of the application responsible for storing and retrieving information.
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How to use the macOS terminal
The terminal is one key piece of your programming arsenal. It allows you to perform tasks that are otherwise impossible to achieve.