Pure Ts Tour May 2026

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

Run: npx tsc && node dist/features/1-basic-types.js src/features/2-arrays-tuples-enums.ts

// Readonly: immutable const frozen: Readonly<Todo> = title: "Learn TS", description: "Practice", completed: false ; // frozen.completed = true; // Error

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