Oana Rinaldi – Page 10 – Art of Coding

Node.js Command Line Tools: Create Your Own JSON Formatter

Node.js Command Line Tools: Create Your Own JSON Formatter Overview: Command line tools are powerful, especially when they can automate tedious tasks like checking or formatting data files. In…

Oana Rinaldi March 21, 2026

JavaScript

Real-Time Form Validation in Vanilla JavaScript

Real-Time Form Validation in Vanilla JavaScript IntroductionForm validation is one of the most fundamental parts of building interactive web applications. While libraries like React or jQuery Validation can simplify…

Oana Rinaldi March 20, 2026

JavaScript

Use JavaScript to Detect and Optimize Slow Images on Your Website

Use JavaScript to Detect and Optimize Slow Images on Your Website IntroductionLarge, unoptimized images can harm your website’s performance and drive away visitors. By using JavaScript, we can programmatically…

Oana Rinaldi March 19, 2026

Python

Building a URL Shortener Service in Python Flask

Building a URL Shortener Service in Python Flask IntroductionWe’ve all used URL shorteners like Bitly or TinyURL — they take a long, messy URL and turn it into something…

Oana Rinaldi March 18, 2026

Shell / Bash

Bash + Cron = Hands-Free Database Backups

Bash + Cron = Hands-Free Database Backups OverviewRegular database backups are essential for data safety, but performing them manually is tedious and error-prone. Thankfully, with a simple Bash script…

Oana Rinaldi March 17, 2026

Python

Building a Simple Chatbot Using Python’s OpenAI API Wrapper

Building a Simple Chatbot Using Python’s OpenAI API Wrapper IntroductionBuilding chatbots with Python has become remarkably accessible thanks to OpenAI’s API and its official Python wrapper. In this guide,…

Oana Rinaldi March 16, 2026

Python

Building a Personal Finance Tracker with SQLite and Python

Building a Personal Finance Tracker with SQLite and Python IntroductionKeeping track of personal expenses is essential for financial health, and Python makes it easy to build your own custom…

Oana Rinaldi March 15, 2026

Automation Scripts

Image Resizing Automation with Python PIL

Image Resizing Automation with Python PIL IntroductionAutomating repetitive image tasks can save hours of manual work, especially for photographers, web developers, or marketing teams that manage large media libraries.…

Oana Rinaldi March 14, 2026

Python

Flattening Nested JSON Objects in Python for Data Analysis

Flattening Nested JSON Objects in Python for Data Analysis IntroductionJSON, or JavaScript Object Notation, is one of the most common data formats used in APIs, configuration files, and data…

Oana Rinaldi March 13, 2026

Shell / Bash

Scheduling Repetitive Tasks Using Cron and Bash

Scheduling Repetitive Tasks Using Cron and Bash IntroductionAutomation is at the core of modern system administration and software operations. Repetitive tasks, such as database backups, log cleanup, and temporary…

Oana Rinaldi March 12, 2026