When learning a programming language, won’t it be nice if you can get some instant feedback on your code? Of course, you cannot expect feedback on bugs in your program. But each language has some built in functionality and idioms…
Fibonacci numbers are a series of numbers such as 1,1,2,3,5,8,13,21,34,55,….
You can write a simple program, such as the one given below, in any language such as perl, python, ruby, javascript, php, java, haskell etc.
slowFib 0 = 1 slowFib
…