Felix warano’s Post

Speed up your JavaScript code by running tasks in parallel, not one by one Most developers still use sequential awaits… but real performance comes from mastering Promise.all(). If you want your apps to load faster and your APIs to respond quicker — this is a must-know trick. Level up your async game with cleaner, faster, modern JavaScript.

Hoisting in JavaScript is one of those concepts that can trip up even seasoned developers. I remember a project where I declared a variable later in the function but tried to use it before. The code worked in development but failed in production, leading to much frustration. It made me appreciate the importance of understanding how JavaScript manages scope. A little clarity can go a long way, especially when you’re collaborating with others. Let’s share best practices around hoisting and how we can avoid pitfalls. #CodeQuality #JavaScript

🌐 Understanding JSX in React Today I learned how JSX allows us to write HTML inside JavaScript. 1)Embedding JavaScript inside {} 2)Single root element rule 3)How React converts JSX into JavaScript ✔ JSX = Syntactic sugar ✔ It gets compiled by Babel ✔ It becomes React.createElement() ✔ React then creates Virtual DOM objects Now React UI development feels more practical and clear. #ReactJS #JSX #FrontendDevelopment #LearningJourney

DAY 22 OF POSTING REACT CONTENT ⚛️ WHAT ARE ES MODULES? 🤔 Modern JavaScript uses ES Modules to split code into separate files. Instead of writing everything in one file, we can: 👉 export something from one file 👉 import it into another file React heavily depends on ES Modules. Every component you create is usually exported and imported somewhere else. #ReactJS #JavaScript #ESModules #FrontendDevelopment #LearnInPublic #WebDevelopment #CodingJourney

I learned about default parameters in JavaScript. When we assign a value using = in a function parameter, that value works as a default. If no argument is passed, instead of getting undefined, the default value is used. This works in regular functions and arrow functions, and it makes the code safer and cleaner. Small concept, but very useful in real projects. #JavaScript #ES6 #Functions #LearningJourney #WebDevelopment

Hello everyone back with a new post. This post is in continuation with the previous post where online and offline features were addressed. Now in this post, I have created a toggle switch to jump between dark and light themes. This was achieved in react with the help of useContext hook. #webdeveloper #reactdeveloper #usecontexthook #javascript #todos

Speed up your JavaScript code by running tasks in parallel Most developers still use sequential awaits… but real performance comes from mastering Promise.all(). If you want your apps to load faster and your APIs to respond quicker — this is a must-know trick. Level up your async game with cleaner, faster, modern JavaScript. 💛🔥

Every senior developer I've met secretly hates JavaScript but keeps using it because there's no real alternative for the browser. It's not a choice. It's a hostage situation. 💀 TypeScript is just JavaScript with a blindfold on 😂 it doesn't fix the chaos underneath. Prove me wrong 👇 #JavaScript #TypeScript #SoftwareEngineering #HotTake

🚀 Bun is changing the game for JavaScript developers! With unparalleled speeds, Bun v1.3.10 makes compilation and bundling feel like a breeze. Imagine running a server that processes 59,026 HTTP requests per second! That's not just fast; that's redefining productivity. What sets Bun apart? It's not just a runtime; it's a complete toolkit. Whether you want to incrementally adopt its features or dive into the entire stack, Bun has you covered. The compatibility with Node.js is a major win for teams looking to transition smoothly. Is your team ready to embrace Bun? What do you think about the future of JavaScript runtimes? #JavaScript #Bun #WebDevelopment

DAY 17 OF POSTING REACT CONTENT ⚛️ HOW DOES REACT USE CODE FROM ONE FILE IN ANOTHER? 🤔 In React, each component usually lives in its own file. To use a component somewhere else, JavaScript provides two simple tools: 👉 export — to make something available 👉 import — to use it in another file This keeps code: organized reusable easy to manage React doesn’t work without this. Every component connection starts here. #ReactJS #JavaScript #ReactBasics #FrontendDevelopment #LearnInPublic #WebDevelopment #CodingJourney