Jade Ose Dev (@jade_ose_dev)

AN ALL API

A MUST HAVE TOOL AND VERY USEFUL TOO... THIS VIDEO DOES NOT BELONG TO ME GOT IT FROM FACEBOOK JUST TRYNA RESHARE IT...#creatorsearchinsights #learncoding

glad that's fixed, back to actually learning something 😮‍💨 this is `async/await` combined with generics and `Promise<T>` and it finally clicked for me Promise<string> and Promise<number> instead of Promise just being a mystery box, you can tell TypeScript exactly what type it resolves to…

Okay I need help because I genuinely do not understand why this is red 😭 wrote `export default function getDefaultUser()` in one file, `export function formatUser()` in the same file, then went to import both like this: `import getDefaultUser, { formatUser } from "./36esmodules-main.js"` in my…

Stack vs Queue — same idea, opposite rules `Stark<T>` (stack) is LIFO — Last In, First Out. `push()` adds to the end, `pop()` removes from the end, `addtop()` uses `unshift()` to shove something straight to the front, skipping the line entirely. `Queue<T>` is FIFO — First In, First Out…

Generic interfaces — one shape, any content `interface Box<T> { content: T }` means Box can hold ANYTHING, but TypeScript still knows exactly what's inside once you use it. `Box<BookItem>` locks it in as a book. Same interface, infinite possible contents, zero loss of type safety. Generic…

No tutorial open, just me, the compiler, and a lot of patience 📚 (long one, worth the read) What it does: A `Book` class holds title, author, isbn, and availability. A `Member` class can borrow and return books. A `Library` class ties it all together — adding books, registering members, and…

🧠 (Long one, grab a seat). 1. interface implements vs class extends — similar but not the same Both let a class "inherit" structure from somewhere else, but: `extends` = inherits actual code. A child class gets real properties and methods already built, plus it can call `super()` to reuse the…

3 TypeScript concepts that took my code from "works" to "works AND makes sense" 🧠 (long one, grab a seat). 1. Generics — why they even exist `returnFirstElement<T>(arr: T[]): T` looks scary but it's solving a real problem. Without generics, you'd either write one function for numbers and another…

Built an abstract class in TypeScript and now everything makes sense 🚗 Employee is abstract — you can't create one directly, it's just a blueprint that forces every child class to build its own calculatePay() and intro() Car extends Vehicle, FullTimeEmployee and ContractorEmployee both extend…