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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...
How to identify if a webpage is being loaded inside an iframe or directly into the browser window?
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edited Aug 14 '15 at 19:15
James Gentes
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jQuery date/time picker [closed]
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xordonxordon
5,24544 gold badges1515 silver badges2626 bronze badges
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How to convert JSON data into a Python object
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384
UPDATE
With Python3, you can do it in one line, using SimpleNamespace and object_hook:
import js...