Alex Merced — Developer and technical writer sharing in-depth insights on data engineering, Apache Iceberg, data lakehouse architectures, Python tooling, and modern analytics platforms, with a strong focus on practical, hands-on learning.
388 articles from this blog
A tutorial on how to write and implement custom JavaScript Promises for handling asynchronous operations.
Explains core React concepts like state, props, lifecycle, and context using a human component analogy for beginners.
A comprehensive React cheat sheet covering project setup, components, props, state, lifecycle, forms, JSX, and Hooks with code examples.
A comprehensive list of online coding playgrounds and prototyping tools for developers, including Repl.it, CodePen, and CodeSandbox.
A reference guide covering the basics of React Hooks, including useState, useEffect, useRef, useContext, and useReducer.
A guide to data communication in Vue.js components, covering props, $attrs, and router-view patterns for effective state management.
Introducing merced-spinup, a CLI tool to quickly bootstrap project templates for various frontend libraries and frameworks, including custom web component libraries.
A technical guide explaining JavaScript Promises and comparing three methods for making API calls: Fetch, Axios, and $.ajax.
A tutorial on connecting to a MongoDB database using the Mongoose ODM library in JavaScript, including setup, schemas, and queries.
A guide for developers on building a personal brand through projects, blogging, social media, and public contributions to advance their tech career.
A reference guide comparing jQuery and vanilla JavaScript for DOM manipulation, covering element selection, creation, and event handling.
Explains JavaScript event handling in browsers and Node.js, covering built-in DOM events, custom events, and practical implementation.
Explains the lifecycle functions (connectedCallback, disconnectedCallback, etc.) available in native Web Components for controlling behavior during rendering and updates.
An introduction to Svelte, a modern frontend framework that compiles code for efficient DOM updates, with a basic tutorial on components and state.
A comprehensive reference guide for developers covering essential Bash commands, Git workflows, VSCode tips, Node.js basics, and community resources.
A comprehensive guide to free and low-cost deployment platforms for static sites, full-stack apps, VPS, and headless CMS options for developers.
A tutorial on styling Web Components using external stylesheets, style tags, CSS parts, and slots for encapsulated UI development.
A comprehensive reference guide for Django covering deployment, REST APIs, database setup, environment variables, and essential commands.
A tutorial on creating basic Web Components, covering setup, Hello World examples, and using ShadowDOM for encapsulation.
A tutorial introducing RenderBlocks, a lightweight JavaScript library for building reactive UI components using a Vue-like constructor pattern.
