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git: How to diff changed files versus previous versions after a pull?
...pecify commits - see the specifying revisions section of man git-rev-parse for more details. In this case, you probably want:
git diff HEAD@{1}
The @{1} means "the previous position of the ref I've specified", so that evaluates to what you had checked out previously - just before the pull. You ca...
What is the best way to implement “remember me” for a website? [closed]
...he series identifier is present and the hash of the token matches the hash for that series identifier, the user is considered authenticated. A new token is generated, a new hash for the token is stored over the old record, and a new login cookie is issued to the user (it's okay to re-use the series ...
How to avoid having class data shared among instances?
...ide every new instance of the object, which is the behavior you're looking for.
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Group by in LINQ
...nce of whatever values were in the projection (p.car in this case) present for the given key.
For more on how GroupBy works, see my Edulinq post on the topic.
(I've renamed PersonID to PersonId in the above, to follow .NET naming conventions.)
Alternatively, you could use a Lookup:
var carsByPer...
Android WebView style background-color:transparent ignored on android 2.2
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This worked for me,
mWebView.setBackgroundColor(Color.TRANSPARENT);
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Where does the iPhone Simulator store its data?
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For Xcode6+/iOS8+
~/Library/Developer/CoreSimulator/Devices/[DeviceID]/data/Containers/Data/Application/[AppID]/
Accepted answer is correct for SDK 3.2 - SDK 4 replaces the /User folder in that path with a number for each o...
PHP Constants Containing Arrays?
...ds to be upvoted as all other answers are outdated or just written by misinformed users.
– Andreas Bergström
Dec 19 '14 at 13:09
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How to clear an ImageView in Android?
I am reusing ImageView s for my displays, but at some point I don't have values to put it.
17 Answers
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Transferring an app to another Firebase account
I have a few apps under my personal firebase account for testing, but now need to transfer an app to a client's account for billing purposes. Is this possible?
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Rails 4 - Strong Parameters - Nested Objects
....rubyonrails.org/classes/ActionController/Parameters.html#method-i-permit
For further clarification, you could look at the implementation of permit and strong_parameters itself: https://github.com/rails/rails/blob/master/actionpack/lib/action_controller/metal/strong_parameters.rb#L246-L247
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