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Ruby on Rails: How do you add add zeros in front of a number if it's under 10?
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how about "%02d" % 9? see http://www.ruby-doc.org/core-2.0/String.html#method-i-25 and http://www.ruby-doc.org/core-2.0/Kernel.html#method-i-sprintf .
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How to send cookies in a post request with the Python Requests library?
...e across requests) you can do:
import requests
r1 = requests.post('http://www.yourapp.com/login')
r2 = requests.post('http://www.yourapp.com/somepage',cookies=r1.cookies)
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How to detect page zoom level in all modern browsers?
...known method
FF4+: media queries binary search (see below)
WebKit: https://www.chromestatus.com/feature/5737866978131968 (thanks to Teo in the comments)
WebKit: measure the preferred size of a div with -webkit-text-size-adjust:none.
WebKit: (broken since r72591) document.width / jQuery(document).wid...
How expensive is the lock statement?
...rstand how much work can be pushed through in multiple scenarios:
https://www.codeproject.com/Articles/1236238/Unified-Concurrency-I-Introduction
https://www.codeproject.com/Articles/1237518/Unified-Concurrency-II-benchmarking-methodologies
https://www.codeproject.com/Articles/1242156/Unified-Concu...
How does Access-Control-Allow-Origin header work?
...Language
Content-Type (this is only simple when its value is application/x-www-form-urlencoded, multipart/form-data, or text/plain)
If the server responds to the OPTIONS preflight with appropriate response headers (Access-Control-Allow-Headers for non-simple headers, Access-Control-Allow-Methods ...
How do you sign a Certificate Signing Request with your Certification Authority?
...#######################
[ alternate_names ]
DNS.1 = example.com
DNS.2 = www.example.com
DNS.3 = mail.example.com
DNS.4 = ftp.example.com
If you are developing and need to use your workstation as a server, then you may need to do the following for Chrome. Otherwise Chrome may complain a Common...
How to select a node using XPath if sibling node has a specific value?
...text()="zz"]/following-sibling::cc[1]/text()
Test the Xpath here: http://www.xpathtester.com/obj/b55ec3ac-dfa4-4f44-81e8-f963ea4a0625
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PDB文件：每个开发人员都必须知道的 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...发人员都必须知道的PDB Files: What Every Developer Must Knowhttp: www.wintellect.com CS blogs jrobbins archive 2009 05 11 pdb-files-what-every...PDB Files: What Every Developer Must Know
http://www.wintellect.com/CS/blogs/jrobbins/archive/2009/05/11/pdb-files-what-every-developer-must-know...
What would be a good docker webdev workflow?
...tore data somewhere else anyway).
docker run -v=/home/user/dev/cmsdir:/var/www/cmsdir:ro image /usr/sbin/apache2
Anyway, for final deployment, I would build and image using dockerfile with ADD /home/user/dev/cmsdir /var/www/cmsdir
I don't know :-)
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Alias with variable in bash [duplicate]
...the following:
In ~/.bashrc add:
sendpic () { scp "$@" mina@foo.bar.ca:/www/misc/Pictures/; }
Save the file and reload
$ source ~/.bashrc
And execute:
$ sendpic filename.jpg
original source: http://www.linuxhowtos.org/Tips%20and%20Tricks/command_aliases.htm
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