TypeScript Slice Function with Optional Parameters

This code defines a TypeScript function named 'slice' that takes two optional parameters 'begin' and 'end', both of which are of type 'number'. The function then logs the values of these parameters to the console.

At the end of the code, the function is called with no arguments, which means that both 'begin' and 'end' will have the value of 'undefined'. Therefore, the function will log 'undefined undefined' to the console.