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Items in JSON object are out of order using “json.dumps”?
...gt;>> json.dumps(OrderedDict(b=2, a=1))
'{"b": 2, "a": 1}'
See PEP 468 – Preserving Keyword Argument Order.
If your input is given as JSON then to preserve the order (to get OrderedDict), you could pass object_pair_hook, as suggested by @Fred Yankowski:
>>> json.loads('{"a": 1,...
How do I enable/disable log levels in Android?
... WARN = LOGLEVEL > 1;
...
public static boolean VERBOSE = LOGLEVEL > 4;
if (VERBOSE) Log.v(TAG, "Message here"); // Won't be shown
if (WARN) Log.w(TAG, "WARNING HERE"); // Still goes through
Later, you can just change the LOGLEVEL for all debug output level.
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How can I call controller/view helper methods from the console in Ruby on Rails?
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14 Answers
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What does “|=” mean? (pipe equal operator)
...e than 1<<1 or 10 in binary
public static final int DEFAULT_LIGHTS = 4; // is the same than 1<<2 or 100 in binary
So you can use bit-wise OR to add flags
int myFlags = DEFAULT_SOUND | DEFAULT_VIBRATE; // same as 001 | 010, producing 011
so
myFlags |= DEFAULT_LIGHTS;
simply means ...
In mongoDb, how do you remove an array element by its index?
.... In fact, this is an open issue http://jira.mongodb.org/browse/SERVER-1014 , you may vote for it.
The workaround is using $unset and then $pull:
db.lists.update({}, {$unset : {"interests.3" : 1 }})
db.lists.update({}, {$pull : {"interests" : null}})
Update: as mentioned in some of the comment...
How to zip a whole folder using PHP
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324
Code updated 2015/04/22.
Zip a whole folder:
// Get real path for our folder
$rootPath = realp...
Can't find the 'libpq-fe.h header when trying to install pg gem
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41 Answers
41
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使用CSplitterWnd实现拆分窗口（多视图显示） - C/C++ - 清泛网 - 专注C/C++及内核技术
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if(!m_wndSplitter.CreateView(0,0,RUNTIME_CLASS(CTest),CSize(rect.Width()/4,rect.Height()),pContext)||
!m_wndSplitter.CreateView(0,1,RUNTIME_CLASS(CSplitterSDIView), CSize(rect.Width()/4*3,rect.Height()),pContext))
{
return FALSE;
}
return TRUE;
}
重载该函数之前需要做的步...
How to set data attributes in HTML elements
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464
HTML
<div id="mydiv" data-myval="10"></div>
JS
var a = $('#mydiv').data('myval...
How to convert a byte array to a hex string in Java?
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924
From the discussion here, and especially this answer, this is the function I currently use:
priv...