Sublime Text 2: How to delete blank/empty lines

Question

Let\'s say I had a text file with the following nine lines:

foo

bar

baz

qux

quux

How can I use Sublime Text 2 to remove all four of the

Answer 1

In my case some empty lines contained the unicode character zero width space (U+200b). To rid empty lines, including the ones with this unicode character:

\s\x{200b}|^\s