// Method decorator that rounds all number arguments
function rounded(target: Object, name: string, descriptor: PropertyDescriptor) {
    const originalFunction = descriptor.value
    // Rewrite the property descriptor to a new function that wraps the original
    descriptor.value = function(...args: number[]) {
        args = args.map((arg) => Math.round(arg))
        // Call the original function
        return originalFunction.apply(null, args)
    }
}
class Adder {
    // Try commenting the decorator
    @rounded
    add(...values: number[]) {
        return values.reduce((a, b) => (a + b), 0)
    }
}
const adder = new Adder()
console.log(adder.add(1.1, 2.8, 2.4))