How to define objects in typescript

Parents : Typescript

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In JavaScript when multiple data types have to be used we use JavaScript Objects But in Typescript we do it through object types : three methods of doing so are:

1. Through anonymous types like follows:

greet.ts

 
function greet(person: { name: string; age: number }) {  return "Hello " + person.name;}

2. By interfaces :

interface Person {  name: string;  age: number;} // used for defining mutliple types at the same time.
function greet(person: Person) {  return "Hello " + person.name;}

3. By use of type aliases :

type Person = {  name: string;  age: number;}; 
function greet(person: Person) {  return "Hello " + person.name;}

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