Angular: Constructor vs ngOnInit explained

Ever wondered how Angular knows when to create, check, or destroy a component? 🤔 That’s where Lifecycle Hooks come in! They allow developers to tap into the life events of a component and run code at the right time. Here’s the complete sequence 👇 --- 🧩 Angular Lifecycle Hooks (in order) 1️⃣ ngOnChanges() — Detects input value changes 2️⃣ ngOnInit() — Runs once on initialization 3️⃣ ngDoCheck() — Custom change detection 4️⃣ ngAfterContentInit() — Content projection completed 5️⃣ ngAfterContentChecked() — Projected content checked 6️⃣ ngAfterViewInit() — View fully initialized 7️⃣ ngAfterViewChecked() — View rechecked 8️⃣ ngOnDestroy() — Cleanup before component is removed --- 🧠 Pro Tips: Use ngOnInit() for API calls or setup logic Use ngOnDestroy() to unsubscribe from observables Avoid heavy logic in ngDoCheck() — it runs frequently! --- 💬 Final Thought: Understanding lifecycle hooks helps you write optimized, predictable, and maintainable Angular components. Know your hooks — and your components will thank you! 😄 #Angular #FrontendDevelopment #WebDevelopment #Coding #RxJS #JavaScript #AngularDeveloper #TechCommunity

🎯 “Angular’s steep learning curve? Maybe not as steep as you think.” At iJSCon, Rainer Hahnekamp clears up one of the biggest misconceptions about Angular — and explains why the framework’s learning curve might actually be fairer than it seems. 💬 Watch his take on why comparing Angular to other frameworks like React changes the perspective. #iJSCon #Angular #WebDevelopment #JavaScript #Frontend #DevCommunity #CodingInsights

4 Angular Myths DEBUNKED! Is Angular Hard to Learn? Let's clear up some outdated beliefs about Angular. From its learning curve to performance and bundle size, a lot has changed since the days of AngularJS. Discover how the framework has evolved to become a top choice for modern web development. Watch my entire Angular Course here: https://lnkd.in/dSkuf-K2 Also, check out my latest book on Amazon "Mastering Angular Signals": https://a.co/d/76XT2zB . . . #Angular #JavaScript #WebDevelopment #CodingMyths #AngularMyths #AngularFramework #Coding #WebDev #TechMyths #latest #tech #trends

4 Angular Myths DEBUNKED! Is Angular Hard to Learn? Let's clear up some outdated beliefs about Angular. From its learning curve to performance and bundle size, a lot has changed since the days of AngularJS. Discover how the framework has evolved to become a top choice for modern web development. Watch my entire Angular Course here: https://lnkd.in/dSkuf-K2 Also, check out my latest book on Amazon "Mastering Angular Signals": https://a.co/d/76XT2zB . . . #Angular #JavaScript #WebDevelopment #CodingMyths #AngularMyths #AngularFramework #Coding #WebDev #TechMyths #latest #tech #trends

4 Angular Myths DEBUNKED! Is Angular Hard to Learn? Let's clear up some outdated beliefs about Angular. From its learning curve to performance and bundle size, a lot has changed since the days of AngularJS. Discover how the framework has evolved to become a top choice for modern web development. Watch my entire Angular Course here: https://lnkd.in/dSkuf-K2 Also, check out my latest book on Amazon "Mastering Angular Signals": https://a.co/d/76XT2zB . . . #Angular #JavaScript #WebDevelopment #CodingMyths #AngularMyths #AngularFramework #Coding #WebDev #TechMyths #latest #tech #trends

Angular vs. React: The BIGGEST Difference! Angular is a full-fledged framework, while React is a library. What does that actually mean? This video breaks down how Angular comes "batteries-included" with a CLI, built-in tools for HTTP, forms, and testing, whereas React requires adding more packages to build a complete application. Watch the whole video here: https://lnkd.in/dGmnp33M . . . #Angular #React #Framework #JavaScript #WebDevelopment #Coding #AngularVsReact #Library #Difference #new #latest #reel #short

4 Angular Myths DEBUNKED! Is Angular Hard to Learn? Let's clear up some outdated beliefs about Angular. From its learning curve to performance and bundle size, a lot has changed since the days of AngularJS. Discover how the framework has evolved to become a top choice for modern web development. Watch my entire Angular Course here: https://lnkd.in/dGmnp33M Also, check out my latest book on Amazon "Mastering Angular Signals": https://a.co/d/76XT2zB . . . #Angular #JavaScript #WebDevelopment #CodingMyths #AngularMyths #AngularFramework #Coding #WebDev #TechMyths #latest #tech #trends

Hello Angular Devs.. I just published an article , “Mastering Dependency Injection - The Basics” on Medium! If you want to strengthen your architecture skills or gain a deep understanding of Angular DI, I’ve put together this article to share what I’ve learned. If you're working with Angular (or any modern framework), mastering DI is non-negotiable - and this article focuses on the core DI fundamentals you need before diving into Angular’s DI system. What’s inside: - What Dependency Injection really means - How DI helps eliminate tight coupling - Why DI is essential for scalable, maintainable architecture - Clean, beginner-friendly TypeScript examples Read the full article here: https://lnkd.in/gW9ZzvsQ Source Code & Examples on GitHub Repo: https://lnkd.in/guXH2wnr If you find the examples helpful, please star the repo — it truly motivates me to create more developer-friendly content! Your turn: What’s your go-to DI pattern — constructor injection, factories, or something else? Would love to hear your approach! Follow me on LinkedIn (https://lnkd.in/gpNaxVZ8), Medium (https://lnkd.in/gJi_EeMx) to get notified when Part 2: DI Patterns, Testing, and Deep Angular DI goes live. Happy coding! #Angular #DependencyInjection #TypeScript #CleanArchitecture #SoftwareEngineering

Working with non-TypeScript files in a TS project? In many TypeScript projects, we import files that are not TypeScript: configuration files, templates, schemas, assets, or any file transformed by a loader or build step. By default, TypeScript cannot infer the shape of these imports. The result is either compiler errors or any-typed values. 👉🏻 A simple module declaration resolves this by explicitly defining the expected type This pattern serves two key purposes: - It tells the TypeScript compiler that files matching *.ext are valid modules. - It defines the contract (type) of the imported value so that downstream code receives correct static typing. This technique is essential when working with: - Custom build pipelines that transform files at compile time - Loaders that convert non-TS assets into JavaScript objects (e.g., parsers, code generators, template engines) - Domain-specific formats that need predictable types in the TypeScript layer What strategies are you using to type external or transformed assets in your TypeScript pipelines? 💬 Ali N. #TypeScript #JavaScript #WebDevelopment #SoftwareEngineering #TypeSafety #FrontendEngineering #DevExperience #CodeQuality

Angular vs. React: The BIGGEST Difference! Angular is a full-fledged framework, while React is a library. What does that actually mean? This video breaks down how Angular comes "batteries-included" with a CLI, built-in tools for HTTP, forms, and testing, whereas React requires adding more packages to build a complete application. Watch the whole video here: https://lnkd.in/dSkuf-K2 . . . #Angular #React #Framework #JavaScript #WebDevelopment #Coding #AngularVsReact #Library #Difference #new #latest #reel #short