Lakhveer Singh Rajput Blog's: 🌟 Insights on Tech, Coding, and Personal Growth 🚀💡

🚫 Ruby on Rails Coding Mistakes Every Developer Should Avoid 🚦 Ruby on Rails is an amazing framework — it lets you build powerful web applications quickly and elegantly. But even seasoned Rails developers often fall into common traps that lead to performance bottlenecks, maintenance nightmares, and bugs that hide in plain sight 😬. In this blog, we’ll explore the most common Rails coding mistakes developers make , along with real examples, fixes, and checkpoints you can use in your Merge Requests (MRs) ✅. 🧩 1. Ignoring N+1 Query Problems ❌ The Mistake: Developers often loop through ActiveRecord relations without realizing how many database queries are triggered. # BAD @users = User.all @users .each do | user | puts user.posts.count end This runs 1 query for users + N queries for posts , leading to performance disaster 🚨. ✅ The Fix: Use includes or eager_load to preload associations efficiently. # GOOD @users = User.includes( :posts ) @users .each do | user ...

  🚫⚛️ ReactJS Code Mistakes & Power Enhancements Every Developer Should Know! ⚡💡 ReactJS is a developer’s best friend — fast, efficient, and flexible. But even pros can slip up! 🤦‍♂️ Whether you’re a beginner or a seasoned dev, avoiding common pitfalls and using best practices can supercharge your React apps 🚀. Let’s dive into some React mistakes you should avoid — and some enhancements you must adopt! 🧠💪 1️⃣ ❌ Mutating State Directly 🚨 Mistake: const [user, setUser] = useState ({ name : 'John' , age : 30 }); user. age = 31 ; // ❌ Direct mutation setUser (user); // Won't re-render! ✅ Enhancement: setUser ( ( prev ) => ({ ...prev, age : 31 })); // ✔️ Immutable update 🔍 Why it matters: React relies on immutability to detect changes. Mutating state directly can lead to stale UI and bugs that are very hard to track! 2️⃣ 🌀 Overusing useEffect 🚨 Mistake: useEffect ( () => { fetchData (); }, [data]); // ❌ Causes infinite loop ✅ Enhancement: useEf...

🎨✨ Coding Principles: Transform Your Code into a Masterpiece! ✨💻 Great code is like art — it’s elegant, expressive, and timeless . To write code that stands the test of time, you need more than just functionality — you need craftsmanship . In this blog, we’ll explore 10 essential coding principles that will make your code clean, efficient, and beautiful , along with examples and common pitfalls to avoid. 🎯 1. KISS (Keep It Simple, Stupid!) — Avoid Over-Engineering Simplicity is the ultimate sophistication. The best code is often the simplest. ✅ Good: # Simple and clear def is_even ( num ): return num % 2 == 0 ❌ Bad: # Overly complex def check_number_parity ( number ): if number % 2 == 0 : return True else : return False Why? Fewer lines = fewer bugs. Easier to read and maintain. 🚫 Common Mistake: Adding unnecessary abstractions or conditions. 🔄 2. DRY (Don’t Repeat Yourself) — Reusability Wins Repetition is the enemy of maintainability...

🚀✨ Code Like a Pro: Ruby on Rails Secrets for Elegant and Professional Apps ✨🚀 Ruby on Rails (RoR) is more than just a framework — it’s a philosophy. By embracing its conventions and leveraging powerful techniques, you can write code that’s clean , maintainable , and downright classy . Let’s dive into the principles, hacks, and tricks that’ll make your Rails code shine like a pro’s! 🧠 Core Rails Principles to Live By 1. DRY (Don’t Repeat Yourself) 🍂 Rails hates redundancy. Use partials , helpers , and concerns to reuse code. # app/controllers/users_controller.rb def create @user = User .new(user_params) respond_to do | format | if @user .save format.html { redirect_to @user , notice: 'User created!' } else format.html { render :new } end end end # Refactor with a shared respond_to block using a concern! module Respondable extend ActiveSupport::Concern included do def respond_to_action ( resource, success_p...

  🌟 Coding Mistakes Every Developer Should Avoid to Be a Pro 🌟 “Any fool can write code that a computer can understand. Good programmers write code that humans can understand.”  — Martin Fowler Coding is more than just getting your application to work; it’s about writing clean, maintainable, and efficient code that others can read and improve. Avoiding common mistakes and adhering to coding standards is what separates a beginner from a pro. In this blog, we will explore the most common coding mistakes developers make and provide tips on how to maintain high-quality code. 🚫 Mistake #1: Ignoring Code Readability Many developers focus solely on getting the code to work without considering how readable it is. Code is read more often than it is written, so prioritizing readability is essential. Example: # Poor readability def x ( y ) y * 100 end # Better readability def calculate_discount ( price ) price * 100 end Tip: Use meaningful variable and method names. Follow ...