1.What is TypeScript, and how is it different from JavaScript? ans:Typescript is a superset of javascript abd is build on top of that. *Allow static strict typing(have to define type). *Extra feature-enum,tuples,interface etc *Support modern feature-arrow function,let,const.(supported by all types of browser)

-------------End answer1----------------

2.Can you explain the difference between "interface" and "type" in TypeScript?

ans:Interfaces are typically used for defining object type data.On the other hand types often use for define aliases(primitive type). Example:Type: type User={ name:String, age:number }

Interface: inteface Iuser { name:String, age:number } -------------End answer2----------------

3.Can you give an example of how to use generics in TypeScript?

ans:Here is an example of generics type function arrayReverse(...arr: T[]): T[] { return arr.reverse(); }

const value = ["hellow","world","foo","bar"]; const reversedStrings = arrayReverse(...value);

console.log(reversedStrings); (solution3) -------------End answer3----------------

4.What is the difference between an "unknown" and "any" type in TypeScript? ans: unknow: we can't assign Unknown to any other type (without an explicit assertion).In unknown we can know the type in runtime or when we call the funtion.

any: When a value is assigned the any type, it means that the value can be of any type.In this case the type of the value is not checked at compile-time or run time.

-------------End answer4----------------

5.Can you give an example of how to use enums in TypeScript? ans: Example: enum ResponseType{ success,fail,unauthenticate } interface ApiResponse{ status:number, type:ResponseType, } const res1 : ApiResponse ={ status:200, type:ResponseType.(all enum can be used) } console.log(response1);