JavaScript Variables, Scope and Hoisting
11/10/2020Variables, Scope and Hoisting in JavaScript Introduction We must understand how variable scope and variable hoisting work in JavaScript, if…
👋 Hey! I am Irena Popova. Full-stack Developer & Linguist. 👩🏻💻
Welcome to my digital notebook of everything I have learned and discovered over the years. This space is a collection of my work — notes, articles, tutorials, and workshop topics with exercises. Everything here is related to web technologies, coding, and creative problem-solving.
On this site, you can explore my blog where I share detailed guides and insights on web development, CSS, React, and other technologies I experiment with. You can also check out tutorials and challenges to learn alongside me, or browse my projects to see hands-on examples of my work.
Whether you’re here to read, learn, or get inspired, I hope you find something useful.
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Popular Posts
Usage of Pseudo-class selector :root
8/3/2020The CSS :root pseudo-class selector is used to select the highest-level parent of a given specification. In the HTML specification, the…
Express 🤔 🛠
7/3/2020Overview and practice Express.js is the best choice when it comes to building web applications with Node.js. However, when saying web…
GitHub
6/13/2020What is GitHub ? 🤔 GitHub is a code-hosting platform. It lets you and others work together on projects from anywhere. 👉 Before anything…
Git-Version Control System
9/15/2019Git is not GitHub. Git is the system, and GitHub is a repository hosting service (the most popular of many). 👉 After this lesson you will…
Functional & Class in React
9/15/2019Functional & class components in React 🤔 🤓 React is a framework that allows us to encapsulate code so to make it more reusable. These…
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Containerizing React Apps: A Docker Deep Dive
2/13/2026Why containerize a React app Containerization solves a common problem in frontend teams: "works on my machine". A container bundles the app…
How Docker Works: A Deep Dive Into the Local Workflow
2/5/2026The Docker workflow, end‑to‑end Docker feels simple when you run docker build and docker run, but the workflow underneath is a disciplined…
Docker Compose: Tradeoffs, Failure Modes, and Production Caveats
2/5/2026Compose in the architecture: what it is and what it is not Docker Compose is a local and single‑host orchestration tool, not a production…
Docker Architecture: A Deep Dive
2/5/2026What Is a Container? You can think of a software container as a container in the real world. The idea is to put your application and its…
Docker Essentials: Managing Dependencies With Ease
2/5/2026The problem Docker quietly solves The most common developer pain I see isn’t “how do I write the code?” It’s “how do I run the code the same…
Testing My Blog with Docker and Kind
2/5/2026Why I did this My blog already builds on push, but I wanted a repeatable, production‑like workflow I can test locally. Docker and Kubernetes…
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