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Is it time to forget about useCallback & memo?
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Hey friend, This is one of the most exciting updates in the React ecosystem: the React Compiler βοΈ. I am incredibly excited because we can now use the Next.js 15 RC βοΈ with this compiler and eliminate many React hooks we've been using, such as useCallback, useMemo, memo, and more. If you prefer to watch the video instead, then check out my latest video here π How does React Compiler ACTUALLY work?
Our Weekly Snack: Is it time to forget useCallback or useMemo?First of all, why are we questioning this? Well, that's because React compiler is out. What is React Compiler?React Compiler is an automatic optimizer for React code. It analyzes your components and optimizes them for performance, reducing the need for manual memoization with hooks πͺ like These hooks are currently used to prevent unnecessary re-renders of components based on whether their props or state have truly changed. React Compiler will optimize your React code provided you follow the Rules of React βοΈ. Now, not using hooks inside a function, function should always return the same output etc. are all part of the rules. These are rules we're aware of. It can reduce the need for developers to manually add memoization code. For example, you may not need to add useCallback and useMemo everywhere as React is going to optimize that for you. Here is an example, How you can get Next.js 15 React Compiler for a new project:How can you enable React Compiler?There are 2 modes:
𧩠Opt-in mode: React Compiler can be enabled in annotation mode, which allows developers to control which components are optimized. This is seen in the left terminal. ⨠Compile all components: Setting it to true will get all components to get optimized. Is React Compiler a Silver Bullet?While React Compiler is a powerful tool, it's essential to remember:
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Latest Frontend NewsFind out if people on Twitter π’ actually ship code or if they're just shiptalking with Ship Talkers βοΈ. βGPT skeleton βοΈ converts your components into Skeleton UI. You can simply copy paste. βBeautiful Gradients βοΈ ready to use for your projects or apps or to add a little whimsy to your apps. Add sounds to your application for user clicks or to have some fun, with the use-sound hook βοΈ. βAstro 4.10 is out βοΈ β¨ Changes include,
What if there was a Next.js form lib that does both client and server validation from one Zod schema, well, this is possible through conform βοΈ.β βTailwind released a new version βοΈ of `prettier-plugin-tailwindcss` β¨ that automatically cleans up unnecessary whitespace in your class lists
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Ankita Kulkarni
Join 6000+ subscribers reading by weekly personalized Newsletter that helps developers level up their skills through weekly Frontend and Leadership Snacks. You get a deep dive into a Tech topic, Actionable tips to excel in your career and a toolbox!
Hey Reader, I have some exciting news π₯³. I have been working hard on launching the Modern Full Stack Next.js Course βοΈ. It's a course that teaches you to build and deploy modern full stack Next.js Production-ready apps. It is coming along well and I am taking the extra time to perfect it. Itβs set to launch in April, and I canβt wait for yβall to check it out! I plan to share extra bonuses π and nuggets for folks on the waitlist so click this magic link to join the waitlist βοΈ. Weekly Snack:...
Hey Reader, I saved a whopping $4836 per year by building a few simple SaaS apps myself. I was tired of paying for features I didnβt need π and dealing with clunky UI / UX. So, I decided to do something about it. I also learned a lot which I've packaged in this video below. If youβd rather watch than read, check out the full video here π But if reading π is your thing, letβs dive into the apps I built and how they helped me ditch those pricey subscriptions! Rave Reviews: Easy Way to Collect &...
Hey friend, I interviewed Lee Rob - the VP of Product at Vercel on my Youtube channel. I learned a lot from our conversation and want to share a few lesson I learned which surprised me. What's so surprising is that these foundational ideas are still crucial, even for someone at Lee's career stage. If you prefer a video version, you should check out the full interview here: But if you prefer reading it, then keep reading. Lesson 1: Ship Small and Get Quick Wins Feeling overwhelmed by a massive...