d3 is a powerful library for creating interactive charts; however, that power stems from users having to work at a lower level than other interactive libraries. Consequently many of the examples for d3 charts are designed to demonstrate how to produce a particular thing - e.g. whiskers for a box and whisker plot - while often hard coding in parameters thereby making the code inflexible. The purpose of this documentation is demonstrate how to make more reusable code to save time in the future.