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Date: Tue, 15 Sep 2015 19:15:01 +0200
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Subject: Number of non-empty elements
From: =?UTF-8?Q?Jesper_Nyg=C3=A5rds?= <jesper.nygards@gmail.com>
To: Zsh Users <zsh-users@zsh.org>
Content-Type: multipart/alternative; boundary=001a11c2381879dad1051fcc5221

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Content-Type: text/plain; charset=UTF-8

Here's a very little thing that's annoying me.

I have a fairly long function where the result is stored in an array called
"mylines".

I want the function to return normally (status zero) if "mylines" contains
at least one non-empty element, and with non-zero otherwise.

This is the best I've come up with so far:

mylines=...

mylines=(${mylines}) # Remove empty elements
return $(( ${#mylines} == 0 ))

I particularly dislike that I have a separate line to remove empty lines.

Is there a more elegant, preferably one-line, solution to achieve this?

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