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Latest Articles

What Is Chaos Engineering, and Why Is the Industry Embracing It?

This article traces chaos engineering from Netflix's Chaos Monkey to modern reliability practices, showing how controlled failure injection helps teams validate resilience before real incidents happen. You will learn its core value, a concrete Netflix case study, and a practical four-step execution framework.

DDIA Ch3 Reading Guide — Data Models and Query Languages

This reading guide to Chapter 3 of Designing Data-Intensive Applications focuses on the core tradeoffs behind data models and query languages. It compares relational and document models through normalization, schema flexibility, and data locality, then explains how to choose based on read/write patterns and real application needs.

DDIA Ch2 Reading Guide — Non-functional Requirements

This reading guide to Chapter 2 of Designing Data-Intensive Applications focuses on four core non-functional requirements in software systems: performance, reliability, scalability, and maintainability. It breaks down latency into measurable stages, explains why median and percentile metrics are more actionable than averages, and shows how resilient design handles hardware, software, and human failures.

Feature Articles

[Medium] LeetCode JS 30 - 2625. Flatten Deeply Nested Array

Learn how to flatten deeply nested arrays in JavaScript without using the built-in Array.flat method. This tutorial introduces a recursive approach to flattening multi-dimensional arrays to a specified depth. Enhance your JavaScript skills with this comprehensive guide!

How to remove duplicates from an array?

Learn multiple solutions to remove duplicates from an array efficiently in JavaScript. This tutorial covers four methods: using Set, filter with indexOf, nested for loop, and utilizing Object or Map. Enhance your JavaScript skills and be well-prepared for array manipulation challenges in interviews and real-world scenarios.

The Most Common JavaScript Event Loop Interview Questions

The event loop is a common question in interviews. In addition to knowing the concept, You also need to know how it works in code. Here we have listed common JavaScript event loop code interpretation questions

What is the CSS Box Model?

When the browser engine lays out the document, it will treat each element as a rectangular Box according to the Box Model of CSS. This Box is composed of content, padding, border and margin.