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November 7, 2025 • 4 min read
🕵🏻 Mocking Functions and Spies in Jest – Expense Tracker Edition
It can calculate totals, handle errors, and even mock APIs like a champ.
November 6, 2025 • 4 min read
Mocking APIs in Jest — Expense Tracker Edition
Our Expense Tracker is getting smarter with every post.
November 5, 2025 • 3 min read
Testing Error Handling in Jest — Expense Tracker Edition
Our Expense Tracker has been doing great so far. It can calculate totals, find the highest expense, and even get averages.
November 4, 2025 • 3 min read
Testing Multiple Functions in Jest — Step by Step
Let’s see what happens when your Expense Tracker starts growing.
November 3, 2025 • 2 min read
Writing Your First Jest Test (Step-by-Step Guide)
Let’s start fresh with a tiny project folder.
November 2, 2025 • 3 min read
What is Testing? And Why Do We Use Jest?
When we write code, we expect it to work the way we imagine.
June 30, 2025 • 1 min read
⏱️ JavaScript Timely Functions Made Simple: setTimeout vs setInterval
One of the coolest things you’ll discover is how to run code after a delay or repeatedly at set intervals.
June 24, 2025 • 1 min read
Create a Firebase Project for React Native in 2025 — Step-by-Step Guide
Firebase is one of the most powerful tools to add backend features like authentication, push notifications, and databases to your React Native app.
May 16, 2025 • 2 min read
🛠️ Automate Your React Native Workflow with a Custom Yarn Command
Create React Native components with a single command and boost your dev productivity 🚀
April 3, 2025 • 1 min read
flatMap in JavaScript
As a React Native developer with over four years of experience, I often come across JavaScript methods that can simplify our code. One such method is flatMap().