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wkhtmltopdf: cannot connect to X server
...eck to see if it works: run
/usr/local/bin/wkhtmltopdf http://www.google.com test.pdf
If it works, then you are done. If you get the error "Cannot connect to X server" then continue to number 7.
We need to run it headless on a 'virtual' x server. We will do this with a package called xvfb.
sud...
Debugging JavaScript in IE7
...unct. Can anyone confirm that this is the same tool hosted here? softpedia.com/get/Tweak/Browser-Tweak/…
– RMorrisey
Oct 3 '12 at 14:20
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How to send an email with Python?
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I recommend that you use the standard packages email and smtplib together to send email. Please look at the following example (reproduced from the Python documentation). Notice that if you follow this approach, the "simple" task ...
How to keep/exclude a particular package path when using proguard?
I want to exclude some file paths from ProGuard. Example com.myapp.customcomponents
4 Answers
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Why use argparse rather than optparse?
I noticed that the Python 2.7 documentation includes yet another command-line parsing module. In addition to getopt and optparse we now have argparse .
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Rails - Validate Presence Of Association?
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You can use validates_presence_of http://apidock.com/rails/ActiveModel/Validations/ClassMethods/validates_presence_of
class A < ActiveRecord::Base
has_many :bs
validates_presence_of :bs
end
or just validates
http://apidock.com/rails/ActiveModel/Validations/ClassMe...
Launch Bootstrap Modal on page load
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85
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git clone through ssh
...r I was getting, on git version 1.7.9.5), noting:
The problem with the command I used initially was that I tried to use an scp-like syntax.
... which was also my problem! So basically in git with ssh, you either use
ssh://username@host.xz/absolute/path/to/repo.git/ - just a forward slash fo...
Reading my own Jar's Manifest
...nd approach didn't work for me. I ended up with a variant of stackoverflow.com/a/1283496/160799
– Gregor
Dec 30 '11 at 11:40
1
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Get the height and width of the browser viewport without scrollbars using jquery?
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$(window).height();
$(window).width();
More info
http://api.jquery.com/height/
http://api.jquery.com/width/
Using jQuery is not essential for getting those values, however. Use
document.documentElement.clientHeight;
document.documentElement.clientWidth;
to get sizes excluding scrollbar...