Oleksandr Sashchuk
@alex_sashchuk
👨💻 10+ years in tech 🏢 Atlassian, IBM, McKinsey 💼 Ex CEO/CTO of 40+ engineers 🥊 Muay Thai fighter 🌴 Remote worker 📝 Learning and building in public
How I Can Be Useful to You? Follow Me! Daily useful tips from the JS world 🌐 Insightful coding experiences 💻 Valuable career advice 🚀 Remote work lifehacks 🌍 Personal blogs about my life 📖 Stay tuned for daily content and let's grow together! 🌱 #letsconnect #js
🤫 Interview Secrets: Home Assignment You're in the interview process and given a take-home assignment, like creating a React app that connects to a public API. Companies often set a time limit, such as 8 hours or 2 days. Here's how to nail it to get ahead of other…
💡React Native Tip 📱 Lately, I’ve been working on a React Native app architecture for a new project in collaboration with @oleksii_cgs (details coming soon 😌). This starter kit for Expo caught my eye: starter.obytes.com If you’re setting up a new project, give it a…
💡VS Code Extension Tip 🔵 Still manually writing console.logs? 😅 Add logs instantly with just (CTRL + OPTION + L) 🚀 Save time and boost productivity ⏱️ Check it out 👉 turboconsolelog.io/home
Boxing night 🥊 Watching my trainer and friend in the ring. The atmosphere is electric, with so many amazing athletes around 🔥
⚛️ React Interview Question: Difference Between TypeScript and PropTypes Your Answer: TypeScript and PropTypes both help describe and validate the structure of React component props. 💡The key difference lies in when they perform these checks: TypeScript: Works at…
Amazon plans to bring employees back to the office in 2025 to curb dual-job scenarios. This move might set a trend for smaller companies to follow. Could this mark the end of remote work's golden era? What's your take - ready to circle back to the office?
💡JavaScript Tip 🔴 When a function has 3+ parameters, use an object instead of individual arguments. Why use this pattern? - Enhances readability - Allows optional parameters easily - Prevents position-based errors - Simplifies future updates P.S. I know this tip is common,…
Dev Career Tip ⚡️ "Tell me about the company recruiting process, and I will tell you what the company is." - Said by me The recruiting process can reveal a lot about the company you're interviewing with 👇 Timeliness: Are they punctual at every step? Even if there's a delay,…
Happy Sunday, everyone ☀️ One of the reasons I love being here (besides this amazing community) 😊 Did you know? We learn: 10% of what we read 20% of what we hear 30% of what we see 50% of what we see & hear 70% of what we discuss 80% of what we experience 95% of what we teach…
⚛️ React Performance Tip: Lazy Loading Components Large bundles slow down your app, affecting page load times. But don't worry - React has a built-in solution 🎯 Introducing React.lazy() for code splitting! This allows you to load components only when they're needed, reducing…
Building meaningful connections is what this space is all about. Grateful to be included on this list 🙏 Thanks for the mention! 👇 x.com/mfarhancodes/s…
Ever since I became active here on X, I have met really awesome people. I am always grateful for their support. Here's a few of them 🚨 SHOUTOUT TIME 🚨 1. @ashadahmed_ 2. @vaneshmali 3. @svnrnns 4. @2sush 5. @1am_programmer2 6. @SubhajitBhar_ 7. @adrianatortja 8.…
Senior Interview Question: How Do Hash Tables Work Under the Hood? Your answer: Hash tables are 🔑 for storing key-value pairs with O(1) lookups, inserts, and deletions. They use a hash function to convert keys into numeric hashes, mapping them to array indices for quick access…
Been grinding through LeetCode algorithms this week - brutal, but eye-opening 🤯 Turns out mastering algorithms is more about mindset than code itself. Here’s what’s helped me: Start with easy problems – Your brain craves wins (dopamine!), so build momentum. 10-15 mins stuck? –…
⚛️ React Optimization Tip: useState + useEffect vs useMemo When updating state based on prop changes: ✅ useMemo: Re-renders once ❌ useState + useEffect: Re-renders twice 🔍 Why not pass expensive computations directly? - Avoids unnecessary re-renders - Ensures consistency…
💡Senior Engineer Tip: Make sure your project has onboarding docs 🚢 In my 10+ year career, I've reviewed 1000+ projects and the same issues keep coming up 😩 Where do I get ENV values? What 3rd-party services do I need access to? Where's the design? How do I run this locally?…
Just created that 👇 post image using @napkin_ai , a new AI tool that turns text into visuals. They’re in open beta and completely FREE! Give it a try for your next presentation or social post. It’s seriously impressive 😍
💡JavaScript Tip 🔴 Do you know how to add properties to an object conditionally? Instead of using ternary operators or if statements, try the logical AND (&&). It’s a cleaner and simpler approach, especially when handling optional data in complex React ⚛️ states before sending…
A quick guide to common network protocols 🌐 👇 HTTP: Powers the web by enabling the transfer of web pages. HTTPS: Secures HTTP by encrypting data for safer transactions. FTP: Transfers files across networks, essential for large data management. TCP: Ensures reliable delivery…
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