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How do I remove a single file from the staging area (undo git add)?
...ith files already in the index. I make changes to several files, open Git and add these files to my staging area with "git add ."
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JavaScript private methods
... every object instance, it creates a separate function bound to the object and not the class. Also, this does not get garbage collected until the object itself is destroyed.
– Arindam
Feb 6 '12 at 22:37
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Cannot set content-type to 'application/json' in jQuery.ajax
...ould seem that the default form-urlencoded content type is considered safe and so does not undergo the extra cross domain checks.
It looks like you will need to add the previously mentioned headers to your servers response to the OPTIONS request. You should of course configure them to allow request...
How to set size for local image using knitr for markdown?
...ge that I would like to include in an .Rmd file which I will then knit and convert to HTML slides with Pandoc . Per this post , this will insert the local image :

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Difference between EXISTS and IN in SQL?
What is the difference between the EXISTS and IN clause in SQL?
21 Answers
21
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Can you make valid Makefiles without tab characters?
...that Makefiles have a tab character preceding the the content of each command line, or it throws a syntax error.
10 Answe...
MYSQL OR vs IN performance
... not believe people who give their "opinion", science is all about testing and evidence.
I ran a loop of 1000x the equivalent queries (for consistency, I used sql_no_cache):
IN: 2.34969592094s
OR: 5.83781504631s
Update:
(I don't have the source code for the original test, as it was 6 years ago, ...
Is it possible to change a UIButtons background color?
...s until a web service responds. Must I change to highlight colour on press and have a timer change to disabled colour while waiting for the ws to respond? If I am missing the point can someone please explain. Thanks Polly.
– Polly
Aug 11 '12 at 11:05
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What is the difference between gravity and layout_gravity in Android?
I know we can set the following values to the android:gravity and android:layout_gravity properties:
20 Answers
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Android: How to put an Enum in a Bundle?
How do you add an Enum object to an Android Bundle?
12 Answers
12
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