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git - diff of current changes before committing
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git diff by default shows difference between your working directory and the index (staging area for the next commit).
If you have already added (staged) the changes to the staging area, git diff --staged does the job. Staging area is the data from which the next commit will be formed by git...
Can you animate a height change on a UITableViewCell when selected?
I'm using a UITableView in my iPhone app, and I have a list of people that belong to a group. I would like it so that when the user clicks on a particular person (thus selecting the cell), the cell grows in height to display several UI controls for editing the properties of that person.
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Creating a segue programmatically
...iew controller (base class) that will transition to a new view controller, and will be inherited by all derived classes. You could do this by creating a method like this one to your base class view controller:
- (IBAction)pushMyNewViewController
{
MyNewViewController *myNewVC = [[MyNewViewCont...
How is performance affected by an unused using directive?
...rformance of your application.
It can affect the performance of the IDE and the overall compilation phase. The reason why is that it creates an additional namespace in which name resolution must occur. However these tend to be minor and shouldn't have a noticeable impact on your IDE experience ...
How do I change the background color of the ActionBar of an ActionBarActivity using XML?
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As per documentation - "You can control the behaviors and visibility of the action bar with the ActionBar APIs, which were added in Android 3.0 (API level 11)."
So, ActionBar will not work for your target environment which is at API level 10 (Android 2.3.3).
Just in case, if y...
How do you Force Garbage Collection from the Shell?
So I am looking at a heap with jmap on a remote box and I want to force garbage collection on it. How do you do this without popping into jvisualvm or jconsole and friends?
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Vim users, where do you rest your right hand? [closed]
... think that jkl; is actually the more appropriate usage for vi. For one, h and l really don't matter that much. w, e, and b are significantly more useful for horizontal navigation. As a bonus, ; is easy to get at if the language requires it. Having a weaker finger on k hurts, and you don't need your...
How can I get all the request headers in Django?
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According to the documentation request.META is a "standard Python dictionary containing all available HTTP headers". If you want to get all the headers you can simply iterate through the dictionary.
Which part of your code to do this depends on your exact requirement. Anypla...
With GitHub how do I push all branches when adding an existing repo?
...t push --tags
would really push everything. See also "Set up git to pull and push all branches".
Don't forget the --dry-run option to make some test before actually pushing everything.
See also GitHub help "Working with remotes" to set your origin to your GitHub remote repo.
As mentioned in "Ho...
How using try catch for exception handling is best practice
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My exception handling strategy is :
To catch all unhandled exceptions by hooking to the Application.ThreadException event, then decide :
For a UI application: to pop it to the user with an apology message (winforms)
For a Service or a ...