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How to go to a specific file in Chrome Developer Tools?
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While in the sources tab use CTRL+O (⌘+O for Mac) to search scripts, stylesheets and snippets by filename.
(use CTRL+SHIFT+O to filter/navigate to a JavaScript function/CSS rule when viewing a file)
[Chrome Devtools Cheatsheet]
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When should one use RxJava Observable and when simple Callback on Android?
...e getUserPhoto example:
RxJava:
api.getUserPhoto(photoId)
.observeOn(AndroidSchedulers.mainThread())
.subscribe(new Action1<Photo>() {
@Override
public void call(Photo photo) {
// do some stuff with your photo
}
});
Callback:...
How do I commit case-sensitive only filename changes in Git?
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Using MacOS here (case-insensitive FS) and -f worked! Thanks for the tip
– caesarsol
Dec 15 '16 at 18:08
54
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ERROR: Error installing capybara-webkit:
...et install qt4-dev-tools libqt4-dev libqt4-core libqt4-gui
If you are on Mac
brew install qt
and then
gem install capybara-webkit -v '0.11.0'
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Is this the right way to clean-up Fragment back stack when leaving a deeply nested stack?
I'm using the Android Compatibility library to implement fragments and have extended the layout sample so that a fragment contains a button which fires off another fragment.
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Using print statements only to debug
... answered Jul 5 '11 at 8:00
macmac
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Difference between SurfaceView and View?
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Official detail answer: developer.android.com/guide/topics/graphics/2d-graphics.html
– Helin Wang
Mar 18 '14 at 16:07
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Xcode “Build and Archive” from command line
...ath "myApp.ipa" -exportProvisioningProfile "My App Provisioning profile"
Mac .app file:
xcodebuild -exportArchive -exportFormat app -archivePath "$ARCHIVE_PATH" -exportPath "myApp.app" -exportSigningIdentity "Developer ID Application: My Software Company"
In both commands the -exportProvisionin...
Rails 4: List of available datatypes
...vantage of these:
:hstore
:json
:jsonb
:array
:cidr_address
:ip_address
:mac_address
They are stored as strings if you run your app with a not-PostgreSQL database.
Edit, 2016-Sep-19:
There's a lot more postgres specific datatypes in Rails 4 and even more in Rails 5.
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Programmatically find the number of cores on a machine
Is there a way to determine how many cores a machine has from C/C++ in a platform-independent way? If no such thing exists, what about determining it per-platform (Windows/*nix/Mac)?
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