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String isNullOrEmpty in Java? [duplicate]
...ing just has whitespace(s). What does "empty" means in real world ? Sounds fun to me!
– asyncwait
Feb 27 '14 at 15:01
...
Event system in Python
...ent()
>>> e()
>>> e.append(f)
>>> e(123)
f(123)
>>> e.remove(f)
>>> e()
>>> e += (f, g)
>>> e(10)
f(10)
g(10)
>>> del e[0]
>>> e(2)
g(2)
"""
def __call__(self...
How do I format a number in Java?
...
You and String.format() will be new best friends!
https://docs.oracle.com/javase/1.5.0/docs/api/java/util/Formatter.html#syntax
String.format("%.2f", (double)value);
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...
What is the coolest thing you can do in
...y "Hide"
There are a great many other commands you can use. Check http://www.microsoft.com/technet/scriptcenter/funzone/agent.mspx for more information.
EDIT 2011-09-02
I recently discovered that Microsoft Agent is not natively installed on Windows 7. However it is offered as a separate download ...
display: inline-block extra margin [duplicate]
...
font-size: 0 to parent container
(Source: https://twitter.com/garand/status/183253526313566208)
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Xcode 6 - How to pick signing certificate/provisioning profile for Ad-Hoc distribution?
... is preinstalled with Xcode 6 (didn't need to re-install Xcode 5).
http://www.thecave.com/2014/09/16/using-xcodebuild-to-export-a-ipa-from-an-archive/
Script in terminal:
xcodebuild -exportArchive -archivePath $projectname.xcarchive -exportPath $projectname -exportFormat ipa -exportProvisioningPr...
How to pass json POST data to Web API method as an object?
...pe explicitly, It will use the default content type which is application/x-www-form-urlencoded;
Edit on Nov 2015 to address other possible issues raised in comments
Posting a complex object
Let's say you have a complex view model class as your web api action method parameter like this
public ...
C++, copy set to vector
...
back_inserter may be used but it will invoke push_back() on the vector
(https://en.cppreference.com/w/cpp/iterator/back_insert_iterator).
emplace_back() is more efficient because it avoids creating a temporary when using push_back(). It is not a problem with trivially
constructed types but will b...
分布式系统的事务处理 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...ogle i/o上的演讲《Transaction Across DataCenter》（视频： http://www.youtube.com/watch?v=srOgpXECblk）
前面，我们说过，要想让数据有高可用性，就需要冗余数据写多份。写多份的问题会带来一致性的问题，而一致性的问题又会带来性能问题...
$(document).ready equivalent without jQuery
...lback();
});
}
ready(function(){
// do something
});
Taken from
https://plainjs.com/javascript/events/running-code-when-the-document-is-ready-15/
Another good domReady function here taken from https://stackoverflow.com/a/9899701/175071
As the accepted answer was very far from complete...