Trim Whitespace from Strings

It is common for input from users to include extraneous whitespaceExtraneous whitespace refers to unnecessary or redundant spaces, tabs, or line breaks within text or code that do not contribute to its meaning or functionality. at one or both ends of a string. This can be problematic, so we often need to remove it. In this recipe, we'll use the string class methods, find_first_not_of() and ...