Interface in TypeScript | Object with Interface

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TypeScript is a free and open source programming language developed and maintained by Microsoft. It is a strict syntactical superset of JavaScript and adds optional static typing to the language. It is designed for the development of large applications and transpiles to JavaScript. As it is a superset of JavaScript, existing JavaScript programs are also valid TypeScript programs.

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[dhruvilkumar]

13:50 you can use below code for array you should use index signature for object only
interface inter {
name:string,
age:number,
isEmployee:boolean,
workHours: number[], // array
otherDetails: {[index:string]: string}, // object : index signature
working: ()=>string
}

let obj:inter = {
name: "Dhruvil",
age: 22,
isEmployee: true,
workHours: [7, 8, 9],
otherDetails: {
dob: "18/08/2002"
},
working: () => {
return "Working ...";
}
}
console.log(obj.name);
console.log(obj.age)
console.log(obj.workHours);

console.log(obj.working());