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Finding # occurrences of a character in a string in Ruby
...just want the number of a's:
puts "Melanie is a noob".count('a') #=> 2
Docs for more details.
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How to resize an image with OpenCV2.0 and Python2.6
I want to use OpenCV2.0 and Python2.6 to show resized images. I used and adopted this example but unfortunately, this code is for OpenCV2.1 and does not seem to be working on 2.0. Here my code:
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C# - What does the Assert() method do? Is it still useful?
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In a debug compilation, Assert takes in a Boolean condition as a parameter, and shows the erro...
Scala best way of turning a Collection into a Map-by-key?
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You can use
c map (t => t.getP -> t) toMap
but be aware that this needs 2 traversals....
CentOS+Nginx+PHP+MySQL详细配置(图解) - PHP - 清泛IT论坛，有思想、有深度
本帖最后由 zqp2013 于 2015-4-26 14:29 编辑
一、安装MySQL
目前web服务器已经很少有跑静态页面的，如果要跑动态网站那当然就离不开数据库，虽然在以前文章中有写MySQL是怎么安装的，但是感觉好久没...
Has anyone ever got a remote JMX JConsole to work?
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How do I convert a git repository to mercurial?
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edited Sep 2 '17 at 7:01
aditsu quit because SE is EVIL
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How to find the files that are created in the last hour in unix
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If the dir to search is srch_dir then either
$ find srch_dir -cmin -60 # change time
or
$ ...
How to empty a Heroku database
...eed) into one action by executing this:
$ heroku run rake db:setup
Edit 2014-04-18: rake db:setup doesn't work with Rails 4, it fails with a Couldn't create database error.
Edit 2014-10-09: You can use rake db:setup with Rails 4. It does give you a Couldn't create database error (because the dat...
'python' is not recognized as an internal or external command [duplicate]
So I have recently installed Python Version 2.7.5 and I have made a little loop thing with it but the problem is, when I go to cmd and type python testloop.py I get the error:
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