Continue work on error messages and checking math within function
create functions_industry directory; create css, images, js directories; create script and index files; test js link
Add name, assignment name, date to js header
add variables with user inputs; create validation while loops
add variable to calculate interest per month; console.log to check math and working properly
create function to determine how many years it will take to pay off loan
add loan payoff formula to comments and define variables
create variable to hold interest to make sure that the principal owed * interest rate can be paid off
include function call to return data; alert user to result; include if for debt not being paid off because interest>= monthly payment; else your estimated payments are alert