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机房版介绍 - App Inventor 2 机房版 - 清泛IT社区，为创新赋能！
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Is there a print_r or var_dump equivalent in Ruby / Ruby on Rails?
...: /home/marcin/work/github/project1
from (irb):17
>>
I also really encourage you to try ruby-debug:
http://railscasts.com/episodes/54-debugging-with-ruby-debug
http://www.sitepoint.com/article/debug-rails-app-ruby-debug/
http://www.datanoise.com/articles/2006/7/12/tutorial-on-ruby-deb...
Bamboo Vs. Hudson(a.k.a. Jenkins) vs Any other CI systems [closed]
...ur build process.
Deploy artifacts to servers (i.e. deploy the war if all the unit tests pass.)
Bamboo 2.7 supports Build Stages, which allow you to break up your build into a Unit Test Stage and a Deploy Stage. Only if the Unit Test Stage succeeds, the build will move on to the Deploy Stage....
How can I transform string to UTF-8 in C#?
...hould also write Console.OutputEncoding = System.Text.Encoding.UTF8;!!! Or all utf8 strings will be outputed as gbk...
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how to implement a pop up dialog box in iOS
... message:@"You must be connected to the internet to use this app."
delegate:nil
cancelButtonTitle:@"OK"
otherButtonTitles:nil];
[alert show];
[alert release];
...
Node / Express: EADDRINUSE, Address already in use - Kill server
...
process.on('exit', ..) isn't called if the process crashes or is killed. It is only called when the event loop ends, and since server.close() sort of ends the event loop (it still has to wait for currently running stacks here and there) it makes no sense ...
Apache: client denied by server configuration
...pache. You can see the enabling of the feature with the directive
Require all denied
This basically says to deny access to all users. To fix this problem, either remove the denied directive (or much better) add the following directive to the directories you want to grant access to:
Require all g...
Detect the Internet connection is offline?
...et may be to just fail gracefully, preserve the data, and alert the user.. allowing them to eventually fix the connection problem if there is one, and to continue using your app with a fair amount of forgiveness.
Sidenote: You could check a reliable site like google for connectivity, but this may n...
Origin is not allowed by Access-Control-Allow-Origin
... of the responding server is to add a response header for:
Access-Control-Allow-Origin: *
This will allow cross-domain Ajax. In PHP, you'll want to modify the response like so:
<?php header('Access-Control-Allow-Origin: *'); ?>
You can just put the Header set Access-Control-Allow-Origin ...
Gson: How to exclude specific fields from Serialization without annotations
... it's almost the same thing as an exclusion annotation as in it applies to all instances of that class. I wanted runtime dynamic exclusion. I some cases I want some fields excluded in order to provide a lighter/restricted response and in others I want the full object serialized
...