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How to Use Regex for Text Processing: Practical Examples in JavaScript and Python

Dev.to · Snappy Tools 🔧 Backend Engineering 3mo ago

How to Use Regex for Text Processing: Practical Examples in JavaScript and Python

Regular expressions solve text problems that string operations can't handle cleanly. Here's a...

How to Read, Debug, and Format JSON API Responses

Dev.to · Snappy Tools 🔧 Backend Engineering ⚡ AI Lesson 3mo ago

How to Read, Debug, and Format JSON API Responses

If you have spent any time working with REST APIs, you have stared at a wall of minified JSON and...

JSON Schema Explained: Validate Your API Data Before It Breaks Production

Dev.to · Snappy Tools 🔧 Backend Engineering ⚡ AI Lesson 3mo ago

JSON Schema Explained: Validate Your API Data Before It Breaks Production

You've seen this before: a frontend sends a request, the backend crashes, and the logs say TypeError:...

JavaScript Minification Explained: How Terser Shrinks Your Code (and Why It Matters)

Dev.to · Snappy Tools 🔧 Backend Engineering ⚡ AI Lesson 3mo ago

JavaScript Minification Explained: How Terser Shrinks Your Code (and Why It Matters)

Every millisecond counts on the web. A 200KB JavaScript bundle takes measurably longer to parse and...

JWT Tokens Decoded: What's Actually Inside Your Auth Token

Dev.to · Snappy Tools 🔧 Backend Engineering ⚡ AI Lesson 3mo ago

JWT Tokens Decoded: What's Actually Inside Your Auth Token

You've seen them — long strings of three dot-separated chunks pasted into Slack, debug logs, and API...

Why Your JavaScript Is Too Big (And How to Fix It in 2 Minutes)

Dev.to · Snappy Tools 🔧 Backend Engineering ⚡ AI Lesson 3mo ago

Why Your JavaScript Is Too Big (And How to Fix It in 2 Minutes)

Every byte of JavaScript your site ships has to be downloaded, parsed, and executed before your page...

URL Encoding Explained: Why %20 Means a Space (and When to Use encodeURIComponent)

Dev.to · Snappy Tools 🔧 Backend Engineering ⚡ AI Lesson 3mo ago

URL Encoding Explained: Why %20 Means a Space (and When to Use encodeURIComponent)

If you've ever built a URL with user input in it, you've hit this problem: spaces and special...

YAML vs JSON: A Practical Guide for Developers

Dev.to · Snappy Tools 🔧 Backend Engineering ⚡ AI Lesson 3mo ago

YAML vs JSON: A Practical Guide for Developers

YAML and JSON are both data serialization formats, but they serve different purposes and have very...

YAML to JSON (and Back): A Practical Guide for Developers

Dev.to · Snappy Tools 🔧 Backend Engineering ⚡ AI Lesson 4mo ago

YAML to JSON (and Back): A Practical Guide for Developers

If you've worked with Kubernetes, Docker Compose, or GitHub Actions, you've used YAML. If you've...

Unix Timestamps Explained: Why Computers Count From January 1, 1970

Dev.to · Snappy Tools 🔧 Backend Engineering ⚡ AI Lesson 4mo ago

Unix Timestamps Explained: Why Computers Count From January 1, 1970

If you've ever called Date.now() in JavaScript, queried a database, or inspected an API response,...

UUID v4 vs UUID v7: Which Should You Use in Your Database?

Dev.to · Snappy Tools 🔧 Backend Engineering ⚡ AI Lesson 4mo ago

UUID v4 vs UUID v7: Which Should You Use in Your Database?

UUID v7 was ratified in May 2024 as part of RFC 9562. If you haven't heard about it yet, you're not...

Binary, Hex, and Octal: The Number Base Cheat Sheet Every Developer Needs

Dev.to · Snappy Tools 🔧 Backend Engineering ⚡ AI Lesson 4mo ago

Binary, Hex, and Octal: The Number Base Cheat Sheet Every Developer Needs

If you've spent any time reading through assembly output, CSS colour values, UNIX permissions, or...