TypeScript Learnings: Type Assertion, unknown vs any, never type

💡 𝗧𝗶𝗽 𝗼𝗳 𝘁𝗵𝗲 𝗗𝗮𝘆 — 𝗝𝗮𝘃𝗮𝗦𝗰𝗿𝗶𝗽𝘁 𝗗𝗶𝗱 𝘆𝗼𝘂 𝗸𝗻𝗼𝘄? "setTimeout(fn, 0)" doesn’t run immediately — it’s queued in the 𝗲𝘃𝗲𝗻𝘁 𝗹𝗼𝗼𝗽. Even with a delay of "0", the callback only runs 𝗮𝗳𝘁𝗲𝗿 𝘁𝗵𝗲 𝗰𝘂𝗿𝗿𝗲𝗻𝘁 𝗰𝗮𝗹𝗹 𝘀𝘁𝗮𝗰𝗸 𝗶𝘀 𝗰𝗹𝗲𝗮𝗿𝗲𝗱. 🔧 𝗪𝗵𝘆 𝘁𝗵𝗶𝘀 𝗺𝗮𝘁𝘁𝗲𝗿𝘀: - Helps you understand async behavior - Useful for deferring execution without blocking - Explains why some code runs later than expected Understanding the event loop = mastering JavaScript timing. #JavaScript #AsyncJavaScript #FrontendDevelopment #WebDevelopment #SoftwareEngineering #CodingTips #EventLoop #FullstackDeveloper

🧠 Day 6 of 21days challenge JavaScript Currying 🔥 function add(a) { ... } Why multiple functions? Currying is a technique where a function with multiple arguments is transformed into a sequence of functions, each taking one argument. It helps in breaking down functions into smaller reusable pieces. For easy understanding :- Currying = one argument at a time Each function returns another function Final result comes at the end 👉 That’s why add(2)(3)(5) works This changed how I structure functions 🚀 #JavaScript #Currying #FunctionalProgramming

Ever written explicit type annotations for simple literals like 'production' or 3000? 🤔 TypeScript 6.0 now infers these automatically! Previously, TypeScript would infer `string` for 'production' and `number` for 3000, forcing explicit annotations for precise types. With TypeScript 6.0's enhanced literal type inference, you get precise literal types automatically, reducing boilerplate while maintaining type safety. → No more verbose annotations for simple constants → Better autocomplete and type checking → Cleaner, more readable code What's your favorite TypeScript 6 feature so far? 🚀 #TypeScript #TypeScript6 #JavaScript #WebDevelopment #CodingTips

🚀 Chai aur TypeScript – Day 10 Today I learned about Functions in TypeScript. 🔑 Key Learnings: • Define types for parameters (input) • Define return types (output) • void → function returns nothing • Optional parameters (?) → not required • Default parameters → provide initial values • Handle complex objects using types/interfaces 💡 Big Insight: Clear input and output types make functions safer and predictable #ChaiAurTypescript #TypeScript #JavaScript #LearningInPublic #DeveloperJourney #ChaiCode Hitesh Choudhary Chai Aur Code

🚀 Day 17/30 – slice() vs splice() in JavaScript These two methods look similar but behave very differently 👇 🔹 slice() Returns a new array Does NOT modify original array Used to extract elements 🔹 splice() Modifies the original array Can add/remove elements Used for updating the array 💡 In simple terms: 👉 slice = copy 👉 splice = change learn with w3schools.com #Day17 #FrontendDeveloper #JavaScript #InterviewPreparation #WebDevelopment #30DaysChallenge JavaScript Mastery

Chai aur TypeScript – Day 11 🚀 Today I learned about Arrays, Tuples, and Enums in TypeScript. 🔑 Key Learnings: • Arrays → define types for elements • readonly → prevent modification • Tuples → fixed types with strict order • Can also be made readonly • Enums → define a fixed set of values • Useful for controlled options 💡 Big Insight: Using strict data structures makes code more predictable and safe #ChaiAurTypescript #TypeScript #JavaScript #LearningInPublic #DeveloperJourney #ChaiCode Hitesh Choudhary Chai Aur Code

🚀 Understanding Async JavaScript: async/await vs .then() Today I practiced handling asynchronous operations in JavaScript using both Promises and async/await 🔥 📌 What I explored: 💡 Key Insight:While .then() works perfectly, async/await makes asynchronous code look synchronous — improving readability and maintainability. 🧠 Example takeaway: Both approaches are powerful — choosing the right one depends on the use case! 🌐 API used: JSONPlaceholder for dummy data testing 📈 Small steps every day towards mastering JavaScript! #JavaScript #AsyncAwait #WebDevelopment #FrontendDeveloper #CodingJourney #LearnInPublic #100DaysOfCode

It's great that people are open-minded about vanilla JavaScript. We feel like we have to do everything with a framework, but that's not true. Post: https://lnkd.in/dfTJaTCu

Implemented Selection Sort in JavaScript, where the smallest element is selected in each iteration and placed at its correct position. A simple yet effective way to understand sorting fundamentals and in-place operations. #JavaScript hashtag#DSA hashtag#Algorithms hashtag#Coding hashtag#WebDevelopment

🚀 Class 7: Master JavaScript Arrow Function Syntax! 🚀 Dive deep into arrow functions with this comprehensive guide covering all syntax variations - from basic arrows to implicit returns. Perfect for React developers! Includes hands-on demos and practical examples. 🔥 What you'll learn: Arrow function basics & syntax variations Parameters, braces, and implicit returns Real-world usage in JavaScript/React YouTube video link: https://lnkd.in/dcyUxbzi