/*
What are Generics?
Generics have been a major feature of strongly typed languages
like Java and C#. In TypeScript, they allow the types of components
and functions to be "SPECIFIED LATER" which allows them to be used
in creating reusable components that can apply to different use cases,
for example:
*/
function returnInput <Type>(arg: Type): Type {
return arg;
};
const returnInputStr = returnInput<string>('Foo Bar');
const returnInputNum = returnInput<number>(5);
console.log(returnInputStr); // Foo Bar
console.log(returnInputNum); // 5
function identity<T>(arg: T): T {
return arg;
}
let output1 = identity<string>("myString");
let output2 = identity<number>( 100 );
console.log(output1);
console.log(output2);
function identity<T>(arg: T): T {
return arg;
}
let fun = identity<string>("hello");
console.log(fun);
/*T is shorthand for Type, meaning "you can specify the data type later"*/
class Greeter<T> {
greeting: T
constructor(message: T) {
this.greeting = message
}
}
let greeter = new Greeter<string>('Hello, world')
function identity<T>(arg: T): T {
return arg;
}Try