Calculate the sum of everything up to a given number

  Hey there! This article is being published a "work in progress," which means that it is not done. So please excuse the rough edges!

I may or may not come back and finish this article. Regardless, I hope that it's helpful in its current state.

About the author

My name is Sean McPherson, and I am a software engineer interested in all areas of front-end development. Here I write articles about programming for developers of all levels, and occassionally other topics.

Currently I work for Khan Academy and live with my lovely family in Pittsburgh, PA.