Day 2 of #365daysofcode I read and revised; HTTP and HTTPS ✅ methods, header and headlines, implementation— Request URL, Request Methods,Status codes... Routing ✅ CRUD REST routing. #NodeJs #backenddev #techjourney #Javascript #Serversidedev
Mastering Node.js: HTTP, Routing, and CRUD
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🤔 Quick JavaScript question What do you think this logs? console.log(typeof null); console.log(typeof undefined); 👉 Output "object" "undefined" Surprising, right? 😄 🔹 null is meant to represent an intentional absence of value, but due to a legacy JavaScript bug, typeof null returns "object". 🔹 undefined means a variable exists but has not been assigned a value, and typeof undefined correctly reflects that. #JavaScript #WebDevelopment #NodeJS #MERN #LearningInPublic
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Stop premature optimization with 𝘂𝘀𝗲𝗠𝗲𝗺𝗼. It’s not free. wrapping every simple string concatenation or array map actually hurts performance due to the hook's internal overhead. Only memoize computationally expensive tasks. Measure first, optimize second. 📉 #typescript #react #nodejs #javascript #webdevelopment #bhadreshpithwa #webdeveloperguide #bestpractices #memo
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📌 LeetCode Solved | Two Sum (JavaScript) ✅ Revisited one of the most classic problems in DSA — Two Sum — but with an optimized mindset. 🧠 Approach Used a HashMap (Map in JS) to store values with their indices and quickly check if the required complement exists. ⏱️ Complexity Time Complexity: O(n) Space Complexity: O(n) #LeetCode #DSA #JavaScript #ProblemSolving #HashMap #CodingJourney #LearnInPublic
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🚀 React Revision Series – Day 9 Today I revised the **Form Handling** in React and created well-structured notes along with practical examples. 📘 What’s included: ✅ Clear revision notes (PDF) ✅ Real-world use cases of Form Handling ✅ Beginner-friendly explanations 📄 Notes (PDF) –https://lnkd.in/dRN3Ab-g #ReactJS #FormHandling #ReactRevision #FrontendDevelopment #JavaScript #LearningInPublic
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🚀 React Revision Series – Day 12 Today I revised the **Components** in React and created well-structured notes along with practical examples. 📘 What’s included: ✅ Clear revision notes (PDF) ✅ Real-world use cases of Components ✅ Beginner-friendly explanations 📄 Notes (PDF) –https://lnkd.in/d4sbiWuw #ReactJS #Components #ReactRevision #FrontendDevelopment #JavaScript #LearningInPublic
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🚀 React Revision Series – Day 11 Today I revised the **Event Handling** in React and created well-structured notes along with practical examples. 📘 What’s included: ✅ Clear revision notes (PDF) ✅ Real-world use cases of Event Handling ✅ Beginner-friendly explanations 📄 Notes (PDF) – https://lnkd.in/dPUDeswG #ReactJS #EventHandling #ReactRevision #FrontendDevelopment #JavaScript #LearningInPublic
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JavaScript: “𝗧𝗿𝘂𝘀𝘁 𝗺𝗲 𝗯𝗿𝗼.” typeof null === "object" [] == false NaN !== NaN None of these throw errors. None of them are getting fixed. It’s not broken. It’s consistent. Consistently confusing. And somehow, we still build everything on top of it. #JavaScript #WebDevelopment #DeveloperLife #TechHumor
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✨ What is a 𝗧𝗿𝗮𝗻𝘀𝗽𝗶𝗹𝗲𝗿 used for in #JavaScript? A transpiler (source-to-source compiler) takes modern JavaScript code (ES6+, ESNext) and converts it into older, widely supported JavaScript (usually ES5). The most popular example is Babel – it lets us write clean arrow functions, classes, async/await, optional chaining and more… while still running perfectly in older browsers and environments. Do you already use a transpiler (consciously :D) in your workflow? Share in the comments! #CleanCodeSolutions #WebDevelopment #JavaScript #Babel
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In DevOps we work a lot with YAML. But YAML only describes data. The meaning lives entirely in the controllers that consume it. Concrete example: A GitOps notification messageTemplate references .Updated.Changes. After a controller upgrade the field becomes .Changed.Changes. The YAML is still valid and the intent is unchanged but CI fails because the internal data model changed. Tools like Helm or Kustomize render YAML, but they don’t protect intent when controller internals or template fields evolve. We have no real transpilers that adapt old intent to new controller versions. Similar to how Babel outputs JS for a specific runtime, treating YAML more like compiled output instead of static config would save a lot of pain. Until then, logs help us bridge the gap. 😂 #DevOps #GitOps #FluxCD #CI #BonnConsulting
✨ What is a 𝗧𝗿𝗮𝗻𝘀𝗽𝗶𝗹𝗲𝗿 used for in #JavaScript? A transpiler (source-to-source compiler) takes modern JavaScript code (ES6+, ESNext) and converts it into older, widely supported JavaScript (usually ES5). The most popular example is Babel – it lets us write clean arrow functions, classes, async/await, optional chaining and more… while still running perfectly in older browsers and environments. Do you already use a transpiler (consciously :D) in your workflow? Share in the comments! #CleanCodeSolutions #WebDevelopment #JavaScript #Babel
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Once you understand how Node handles background tasks like DB calls and API requests, backend becomes much easier. Clean async code = reliable backend #NodeJS #BackendDev #JavaScript
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