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'git' is not recognized as an internal or external command
...
In the Start Menu or taskbar search, search for "environment variable".
Select "Edit the system environment variables".
Click the "Environment Variables" button at the bottom.
Double-click the "Path" entry under "System variables".
With the "New" button in the PATH editor, add C:\Program Files\Gi...
mongodb group values by multiple fields
...urse the ability to interpolate the variable through $expr using $match to select the matching items in the "join", but the general premise is a "pipeline within a pipeline" where the inner content can be filtered by matches from the parent. Since they are both "pipelines" themselves we can $limit e...
Reading large text files with streams in C#
...to memory, loads faster as it doesn't make a new string every time you add chars)
– Joshua G
Jan 20 '16 at 15:01
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How to change Navigation Bar color in iOS 7?
... You can also use if ([self.navigationController.navigationBar respondsToSelector:@selector(setBarTintColor:)]) vs the version number to check if you can set the barTintColor
– SimpsOff
Dec 24 '13 at 17:32
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Memory footprint of Haskell data types
...e) which take 2. GHC actually has a cache of small values of type Int and Char, so in many cases these take no heap space at all. A String only requires space for the list cells, unless you use Chars > 255.
An Int8 has identical representation to Int. Integer is defined like this:
data Integ...
领域驱动设计系列（五）:事件驱动之异步事件 - 更多技术 - 清泛网 - 专注C/...
... var handlers = _eventHandlerFactory.GetHandlers<T>();
handlers.Select(h => Task.Factory.StartNew(() => HandleEvent<T>(h, @event)));
}
这段代码执行完，尽然发现Handler没有执行，好吧，原因是IQueryable的延迟执行，所以我们需要调用一下ToL...
How to check whether a file is empty or not?
... my_file.seek(0) #ensure you're at the start of the file..
... first_char = my_file.read(1) #get the first character
... if not first_char:
... print "file is empty" #first character is the empty string..
... else:
... my_file.seek(0) #first character wasn't empty, retu...
Volley Android Networking Library
...ley repository via Git.
Import the project into Android Studio. (I usually select the project's gradle file when importing in Android Studio)
Build the project. (I had to change the gradle build settings to reflect the latest build tools and gradle version, but it's usually up to date).
In your file...
How do I pass the value (not the reference) of a JS variable to a function? [duplicate]
...sults[i];
google.maps.event.addListener(marker, 'click', () => change_selection(i));
}
In older browsers, you need to create a separate scope that saves the variable in its current state by passing it as a function parameter:
for (var i = 0; i < results.length; i++) {
(function (i) {...
Python str vs unicode types
...from being able to set Unicode codes in unicode strings using the escape char \ ?:
4 Answers
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