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How to view file diff in git before commit
...ke to revert some changes):
git difftool myfile.txt
To use git difftool more efficiently, install and use your favourite GUI tool such as Meld, DiffMerge or OpenDiff.
Note: You can also use . (instead of filename) to see current dir changes.
In order to check changes per each line, use: git bla...
Why does my application spend 24% of its life doing a null check?
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Threads don't solve this problem. Gives you more cores, you still have only one memory bus.
– Hans Passant
May 15 '13 at 14:58
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Dilemma: when to use Fragments vs Activities:
... you feel comfortable with Fragments, you can watch all their videos. Even more they are mandatory material.
Can you right now look at your UI and figure out if you need an Activity or a Fragment? Did you get a new perspective? I think you did.
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Disable validation of HTML5 form elements
...o use the new HTML5 form types, for example <input type="url" /> ( more info about the types here ).
11 Answers
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Add support library to Android Studio project
...his tool.
I'd suggest referring to @skyfishjy's answer, as it seems to be more updated than this one.
The below is not updated
Although android studio is based on IntelliJ IDEA, at the same time it relies on gradle to build your apk. As of 0.2.3, these two doesn't play nicely in term of configu...
AngularJS best practices for module declaration?
...and filters), including all different test-files, as it makes your modules more reusable. Thus in middle-sized projects I end up with a base-module, which includes all basic routes and their controllers, services, directives and more or less complex sub-modules, when I think they could be useful for...
Setting “checked” for a checkbox with jQuery
...hat contains it – a subtle but probably unwelcome behaviour change.
For more context, some incomplete discussion of the changes to the handling of the checked attribute/property in the transition from 1.5.x to 1.6 can be found in the version 1.6 release notes and the Attributes vs. Properties sec...
How can I see which Git branches are tracking which remote / upstream branch?
... believe existed at the time I originally wrote this answer, so it's a bit more concise and works with branches configured for rebase, not just merge.
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Given a DateTime object, how do I get an ISO 8601 date in string format?
...d particularly to the first suggestion). Refer to the comments section for more information.
DateTime.UtcNow.ToString("yyyy-MM-ddTHH\\:mm\\:ss.fffffffzzz");
This gives you a date similar to 2008-09-22T13:57:31.2311892-04:00.
Another way is:
DateTime.UtcNow.ToString("o");
which gives you 2008...
What is a columnar database?
... an additional indication that such an approach for DBMSes strays from the more "natural" (and certainly more broadly used) approach to storing record entities. As a result, this approach is used when the row-oriented approach isn't satisfactory, and therefore and tends to
a) be targeted for a pa...