Guided Notes
Classes & Access Modifiers
Typed class properties, constructors and parameter properties, public/private/protected, readonly, getters/setters, implements, inheritance and abstract classes.
Typed classes
Slide 1 / 4class BankAccount { readonly id: string; private balance: number = 0;
constructor(id: string, public owner: string) { // parameter property this.id = id; }
deposit(amount: number): void { if (amount <= 0) throw new RangeError("Deposit must be positive"); this.balance += amount; }
get currentBalance(): number { return this.balance; } }
Parameter properties (public owner) declare and assign a property in one step.