Like all of our introcs functions, **random** needs to be imported!

import { random } from "introcs";

This is what our function definition looks like!

```
let random = (floor: number, ceiling: number): number => {
//...
}
```

**random** takes in two number arguments that act as the '*floor*' and the '*ceiling*'

The number that is returned as a result from the function will return a randomly generated number between the floor and the ceiling.

The floor and the ceiling are inclusive, meaning the generated number will be >= *floor* and <= *ceiling*.

```
let whereShouldIStudy = () : string => {
let randomNumber = random(1,4);
if(randomNumber === 1) {
return "Old Well";
} else if(randomNumber === 2) {
return "Bell Tower";
} else if(randomNumber === 3) {
return "Dean Dome";
} else {
return "Franklin Street";
}
}
//whatever number is generated will determine what string is printed!
```