The `Math.round()` function in JavaScript rounds a given number to the nearest whole number. It takes one argument: the number you want to round.
Arrow functions in JavaScript offer a concise way to define
functions. Here's the basic syntax:
```javascript
const arrowFunction = (parameters) =>
{
// Function body code
return expression;
}
```
Let me know if you'd like more detailed
explanations about using arrow functions in your code.