What are the advantages and disadvantages of top-down and bottom-up programming? How would you decide which one to use? Do you approach problems in your real life from a bottom-up or top-down approach?

Some advantages of top-down are that you can start off from what you know and figure out what you need to complete it, the advantage to bottom-up is that you can make something new . if you are starting something from scratch and you don't know what the end goal might be you would use bottom-up but if you already have an idea or the final product of what you want you would go with the top-down approach.

answer(igmp);

the today function returns a valid value without any arguments.

the today function returns the current date based on the computer's date setting and formatted as a date. today takes no parameters, but requires that you use empty parentheses