Oana Rinaldi – Page 5 – Art of Coding

Java Regex Recipes for Everyday Text Cleanup

Java Regex Recipes for Everyday Text Cleanup Regular expressions (regex) are a powerful tool for textual data transformation and validation. In Java, the java.util.regex package provides robust support for…

Oana Rinaldi August 24, 2025

JavaScript

From CSV to JSON: A Node.js Utility You Can Reuse Anywhere

From CSV to JSON: A Node.js Utility You Can Reuse Anywhere CSV (Comma-Separated Values) is a widely used data format for tabular data, but for modern web applications, JSON…

Oana Rinaldi August 23, 2025

JavaScript

JavaScript Debounce Function Explained with Real UX Fixes

JavaScript Debounce Function Explained with Real UX Fixes When users type in a search input, their keystrokes can trigger a flurry of API calls — resulting in laggy interfaces,…

Oana Rinaldi August 22, 2025

SQL

Mastering SQL Window Functions for Financial Analytics

Mastering SQL Window Functions for Financial Analytics SQL window functions have become an indispensable tool for data analysts working in finance. Whether you’re analyzing stock prices, transaction logs, or…

Oana Rinaldi August 21, 2025

Sorting Algorithms

Sorting Large Datasets: QuickSort vs MergeSort Visualized in Java

Sorting Large Datasets: QuickSort vs MergeSort Visualized in Java Sorting algorithms are fundamental to computing, and mastering them is crucial for every developer. In this blog post, we’ll compare…

Oana Rinaldi August 20, 2025

Python

Scraping the Weather: Build a Python CLI for Real-Time Forecasts

Scraping the Weather: Build a Python CLI for Real-Time Forecasts As developers, we often need quick access to live data—like weather—without opening a browser. In this guide, we'll build…

Oana Rinaldi August 19, 2025

Python

Find Longest Consecutive Sequence Algorithm Solved in Python One-Liner Style

Find Longest Consecutive Sequence Algorithm Solved in Python One-Liner Style Introduction Finding the longest consecutive sequence in an unsorted list of integers is a classic problem that frequently shows…

Oana Rinaldi August 18, 2025

SQL

Optimize SQL Queries by Profiling Execution Plans

Optimize SQL Queries by Profiling Execution Plans SQL performance tuning is a critical skill for developers and database administrators alike. Poorly optimized queries can cripple application performance, increase costs,…

Oana Rinaldi August 17, 2025

Java

Build a RESTful CRUD API in Java with Spring Boot

Build a RESTful CRUD API in Java with Spring Boot Spring Boot has become the go-to framework for building production-ready Java applications — and one of its most popular…

Oana Rinaldi August 16, 2025

Java

Java Regex Recipes: Validate Email Addresses Like a Pro

Java Regex Recipes: Validate Email Addresses Like a Pro Validating email addresses is one of the most common but deceptively complex tasks developers encounter. While it's tempting to slap…

Oana Rinaldi August 15, 2025