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robertcoopercode/intersection-annotation.ts

Created January 9, 2019 00:30
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intersection-annotation.ts
type Student = {
id: string;
age: number;
};
type Employee = {
companyId: string;
};
let person: Student & Employee;
person.age = 21; // ✅
person.companyId = 'SP302334'; // ✅
person.id = '10033402'; // ✅
person.name = 'Henry'; // ❌ - name does not exist in Student & Employee
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