Rasika Dangamuwa - DEV Community

Rasika Dangamuwa

Aug 10

JSON to Go Structs: 5 Edge Cases That Break Type Safety in Golang

#go #json #webdev

3 min read

Rasika Dangamuwa

Aug 10

Why Auto-Generated TypeScript Interfaces Fail in Production (and How to Fix Them)

#webdev #typescript #javascript #programming

3 min read

Rasika Dangamuwa

Aug 10

Why UUID v4 Is Killing Your Database Indexes (And How UUID v7 Fixes It)

#database #postgres #sql #webdev

3 min read

Rasika Dangamuwa

Aug 9

Converting cURL Commands to Production Code: 5 Edge Cases That Break API Calls

#webdev #javascript #python #programming

3 min read

Rasika Dangamuwa

Aug 9

Why Linux Permission Bugs Cause Security Incidents (And the Chmod Math Edge Cases Every Developer Misses)

#linux #devops #security #webdev

3 min read

Rasika Dangamuwa

Aug 9

JSON to Protobuf Schema Conversion: Type Ambiguity, Field Tags, and Proto3 Pitfalls

#webdev #javascript #programming #architecture

3 min read

Rasika Dangamuwa

Aug 9

Cron Syntax Edge Cases That Break Production Jobs: DST, Field Misalignment, and the Day-of-Month Trap

#devops #programming #webdev #javascript

3 min read

Rasika Dangamuwa

Aug 8

Why Base64 Decoding a JWT Isn't Enough: 5 Security Edge Cases Every Developer Misses

#webdev #javascript #security #programming

3 min read

Rasika Dangamuwa

Aug 7

Why Your PWA Isn't Installable: The manifest.json Pitfalls That Silent-Fail in Production

#webdev #javascript #pwa #frontend

3 min read

Rasika Dangamuwa

Aug 7

Base64 Image Decoding in JavaScript: Data URL Pitfalls, Memory Overhead, and Browser Limits

#webdev #javascript #frontend #programming

3 min read

Rasika Dangamuwa

Aug 7

Bcrypt Under the Hood: Cost Factors, the 72-Byte Limit, and Common Hashing Pitfalls

#webdev #javascript #security #programming

3 min read

Rasika Dangamuwa

Aug 4

Coding Weighted Grade Algorithms: Calculating Final Exam Requirements, Category Weights, and Edge Cases

#webdev #javascript #programming #education

3 min read

Rasika Dangamuwa

Aug 4

Coding GPA & Weighted Grade Algorithms: Floating-Point Drift, Credit Hour Normalization, and Truncation Bugs

#webdev #javascript #programming #algorithms

4 min read

Rasika Dangamuwa

Aug 4

The Missing Penny Problem: Why Bill Splitting & Tip Math Breaks in Code

#webdev #javascript #programming #math

3 min read

Rasika Dangamuwa

Aug 4

Coding BMI & Health Metrics: Unit Conversions, Floating-Point Precision, and Boundary Edge Cases

#webdev #javascript #programming #math

3 min read

Rasika Dangamuwa

Aug 3

Coding Progressive Tax Algorithms: Floating-Point Errors, Bracket Edge Cases, and Effective vs. Marginal Rates

#webdev #javascript #programming #productivity

3 min read

Rasika Dangamuwa

Aug 3

Date Math in Production: Leap Years, Timezones, and Why Naive Age Calculation Fails

#webdev #javascript #programming #productivity

3 min read

Rasika Dangamuwa

Aug 1

Coding Dollar-Cost Averaging (DCA): Precision Loss, Date Overflows, and Weighted Averages

#programming #webdev #javascript #finance

3 min read

Rasika Dangamuwa

Aug 1

CSS Clip-path Generator: Visually Build Polygon Shapes (With Real Examples)

#css #webdev #frontend #tools

2 min read

Rasika Dangamuwa

Aug 1

Why Financial Calculation Math Fails in Production: Floating-Point Drift, Amortization, and Edge Cases

#webdev #javascript #programming #productivity

3 min read

Rasika Dangamuwa

Aug 1

Why Percentage Calculations Break in Production: Floating-Point, Division by Zero, and Localized Formats

#webdev #javascript #programming #math

3 min read

Rasika Dangamuwa

Aug 1

Why Floating-Point Math Breaks Financial Projections (And How Compounding Works in Code)

#webdev #javascript #programming #math

3 min read

Rasika Dangamuwa

Aug 1

Client-Side PDF Watermarking in JavaScript: Coordinates, Rotation, and Memory Management

#webdev #javascript #programming #productivity

3 min read

Rasika Dangamuwa

Jul 31

Why <input type="color"> Breaks in Modern Web Apps (And How to Handle OKLCH, EyeDropper, and Color Precision)

#webdev #javascript #css #programming

4 min read

Rasika Dangamuwa

Jul 31

Freelance Invoicing: What Tax Authorities Require (And the Code Edge Cases That Cause Audits)

#webdev #javascript #programming #productivity

3 min read

Rasika Dangamuwa

Jul 30

Why String Case Conversion Is Deceptively Hard: The Edge Cases That Break Naive Functions

#webdev #javascript #programming #productivity

3 min read

Rasika Dangamuwa

Jul 30

Why Your Readability Score Is Lying to You (And How Word Counting Breaks in Code)

#webdev #javascript #programming #productivity

3 min read

Rasika Dangamuwa

Jul 29

Image Dimensions vs File Size: Why Canvas Resizing Breaks Quality and How to Fix It

#webdev #javascript #programming #productivity

3 min read

Rasika Dangamuwa

Jul 28

Why Your Brand Colors Look Different on Every Screen (And How Color Spaces Work)

#webdev #javascript #css #programming

3 min read

Rasika Dangamuwa

Jul 28

QR Codes Under the Hood: What is in the Data and What Breaks Them

#webdev #javascript #programming #productivity

3 min read

Rasika Dangamuwa

Jul 28

The Unit Conversion Bugs That Cause Production Incidents (and How to Avoid Them)

#webdev #javascript #programming #productivity

3 min read

Rasika Dangamuwa

Jul 28

Password Entropy Explained: Why Length Beats Complexity in Modern Auth

#webdev #javascript #programming #security

3 min read

Rasika Dangamuwa

Jul 27

The 2038 Problem and Timestamp Edge Cases: How to Audit Your Codebase

#webdev #javascript #programming #productivity

3 min read

Rasika Dangamuwa

Jul 27

The Regex Edge Cases That Break Most Production Validators

#webdev #javascript #programming #productivity

3 min read

Rasika Dangamuwa

Jul 27

JSON Edge Cases Your Parser Silently Ignores (And How to Fix Them)

#webdev #javascript #programming #devops

1

3 min read

Rasika Dangamuwa

Jul 25

Statistics Calculator: Free Tool for Mean, Median, Mode, and Standard Deviation

#webdev #productivity #programming #datascience

3 min read

Rasika Dangamuwa

Jul 25

Statistics Calculator: Mean, Median, Std Dev and More From Any List of Numbers

#statistics #datascience #productivity #webdev

3 min read

Rasika Dangamuwa

Jul 24

How to Use a CD Calculator to Compare Terms and Rates

#finance #money #productivity #webdev

3 min read

Rasika Dangamuwa

Jul 23

Streamlining Your Writing Workflow with Word Counter

#writing #productivity #tools

2 min read

Rasika Dangamuwa

Jul 23

How I Use Homepage to Save Time as a Developer

#utilities #tools #webdev #productivity

1 min read

Rasika Dangamuwa

Jul 23

How I Use Nutilz Home to Save Time as a Developer

#utilities #tools #webdev #productivity

1 min read

Rasika Dangamuwa

Jul 23

Binary, Octal, Decimal, Hex: How Number Base Conversion Actually Works

#webdev #programming #beginners #tutorial

2 min read

Rasika Dangamuwa

Jul 22

How I Use Hash Generator to Save Time as a Developer

#utilities #tools #webdev #productivity

1 min read

Rasika Dangamuwa

Jul 21

How I Use Curl To Code to Save Time as a Developer

#utilities #tools #webdev #productivity

1 min read

Rasika Dangamuwa

Jul 21

How I Use Image Compressor to Save Time as a Developer

#utilities #tools #webdev #productivity

1 min read

Rasika Dangamuwa

Jul 21

CSV, JSON & XML Converter: Convert Between Any Two Formats, Free

#webdev #json #productivity #programming

3 min read

Rasika Dangamuwa

Jul 20

How to Look Up Any Domain's WHOIS Data for Free

#webdev #security #productivity #tools

2 min read

Rasika Dangamuwa

Jul 19

Redirect Chain Checker: See Every Hop a Shortened URL Takes Before You Click It

#webdev #productivity #security #tools

2 min read

Rasika Dangamuwa

Jul 18

Paycheck Calculator: Free 2025 Take-Home Pay Estimator

#webdev #finance #productivity #javascript

3 min read

Rasika Dangamuwa

Jul 18

How to Check When a Domain Actually Expires (and Why It Matters More Than You Think)

#webdev #productivity #programming #tools

3 min read

Rasika Dangamuwa

Jul 18

Why Your Recipe's Cups Don't Match Your Scale's Grams (And How to Fix It)

#cooking #productivity #webdev #tools

3 min read

Rasika Dangamuwa

Jul 18

Word Frequency Analysis: What Your Text Is Really Saying (And a Free Tool to Run It)

#webdev #javascript #productivity #seo

1

3 min read

Rasika Dangamuwa

Jul 18

CAGR Explained: The Growth Rate That Doesn't Lie to You

#finance #productivity #javascript #webdev

3 min read

Rasika Dangamuwa

Jul 18

Spin the Wheel: A Free Random Picker for Raffles, Teams, and Decisions

#webdev #productivity #javascript #tools

3 min read

Rasika Dangamuwa

Jul 18

Why Freelancers Keep Getting Invoices Wrong (And a Free Tool That Fixes It)

#webdev #productivity #freelance #smallbusiness

3 min read

Rasika Dangamuwa

Jul 18

Ideal Weight Isn't One Number — Why Four Different Formulas Disagree

#health #productivity #webdev #javascript

3 min read

Rasika Dangamuwa

Jul 18

How to Calculate Square Footage for Any Room Shape (Rectangle, Circle, Triangle, L-Shape)

#webdev #productivity #tutorial #beginners

3 min read

Rasika Dangamuwa

Jul 18

The .gitignore File Nobody Writes From Scratch Anymore (Free Generator, 30+ Stacks)

#git #webdev #productivity #programming

3 min read

Rasika Dangamuwa

Jul 18

The Car Lease Math Dealers Don't Explain (And a Free Calculator to Check Your Deal)

#webdev #javascript #productivity #finance

3 min read

Rasika Dangamuwa

Jul 18

What Was $100 Worth in 1990? A Free Inflation Calculator Using Real CPI Data

#finance #webdev #productivity #tutorial

3 min read