Pure Ts Tour May 2026

console.log( $username, $age, active: $isActive );

// Union type type Result = "success" | "error" | "loading"; let state: Result = "loading"; // Intersection type type Person = name: string ; type Employee = id: number ; type Worker = Person & Employee; pure ts tour

// Explicit typing let username: string = "Alice"; let age: number = 30; let isActive: boolean = true; // Type inference (hover to see TS inferred type) let city = "Paris"; // string let score = 99.5; // number console

// Partial: make all properties optional function updateTodo(todo: Todo, fields: Partial<Todo>): Todo return ...todo, ...fields ; active: $isActive )