Promises 1

⬅️ FEM TypeScript Fundamentals

Promises

• TypeScript needs to statically type promises, just like it does for other code.
• All promises have the type Promise<T>, where T is the type of the value inside the promise
• It’s easy to forget to give functions a Promise return type.

//👎
const promise: number = Promise.resolve(100);
promise;
 
//Async Result:
 
type error: Type 'Promise<number>' is not assignable to type 'number'.