is-string-and-not-blank
3x as fast as `is-whitespace` and `whitespace-regex` thanks to `is-string-blank`. This package is a simple function that accepts an argument and returns `true` if it is a string AND it is not blank. Supports Node and Browser environments.
blank-line
get min/mid/max blank line length in text ( not include start/end line )
has-flag
Check if argv has a specific flag
kind-of
Get the native type of a value.
is-stream
Check if something is a Node.js stream