# The stringr Package

## Master R

When doing data cleaning, we often have to clean up strings of text. Doing this in R used to be a pain until the birth of the stringr package. For example, it contains a function called str_trim() that allows you to easily remove any leading and trailing whitespace of a string. It also contains a function called str_sub() that allows you to easily extract substrings from any string. Run the following code to see these two functions work.