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Should it be “Arrange-Assert-Act-Assert”?
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This is not the most common thing to do, but still common enough to have its own name. This technique is called Guard Assertion. You can find a detailed description of it on page 490 in the excellent book xUnit Test Patterns by Gerard Meszaros (highly recomme...
Using :before CSS pseudo element to add image to modal
...d, z-indexed above it's parent, and nicely positioned with JQuery. I want to add a caret image (^) to the top of the modal box and was looking at using the :before CSS pseudo selector to do this cleanly.
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How to check if a URL is valid
...nder Günther said in the comments, it checks if a string contains a URL.
To check if the string is a URL, use:
url =~ /\A#{URI::regexp}\z/
If you only want to check for web URLs (http or https), use this:
url =~ /\A#{URI::regexp(['http', 'https'])}\z/
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How do I view the type of a scala expression in IntelliJ
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Select expression and type Alt + =.
If you want to change the shortcut go to Preferences > Keymap and enter "Type Info" in the search field.
In older versions, it's Shift + Ctrl + Alt + T.
sha...
Is volatile expensive?
...out the implementation of volatile, especially section "Interactions with Atomic Instructions" I assume that reading a volatile variable without updating it needs a LoadLoad or a LoadStore barrier. Further down the page I see that LoadLoad and LoadStore are effectively no-ops on X86 CPUs. Does this ...
What is a build tool?
...ava), and Visual Studio Express (for C#). The IDEs mentioned always seemed to provide every facility a programmer might ask for (related to programming, of course).
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RecyclerView onClick
Has anyone using RecyclerView found a way to set an onClickListener to items in the RecyclerView ?
I thought of setting a listener to each of the layouts for each item but that seems a little too much hassle
I'm sure there is a way for the RecyclerView to listen for the onClick event but I ...
How to send HTTP request in java? [duplicate]
In Java, How to compose a HTTP request message and send it to a HTTP WebServer?
9 Answers
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How to store custom objects in NSUserDefaults
...n doing some poking around, and I realize my problem, but I don't know how to fix it. I have made a custom class to hold some data. I make objects for this class, and I need to them to last between sessions. Before I was putting all my information in NSUserDefaults , but this isn't working.
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Is there any way to ignore INSTALL_FAILED_VERSION_DOWNGRADE on application install with the Android
... 4.2 has introduced this error condition on installation when one attempts to install an APK with a lower version. In prior versions of Android, one would be able to install older APK's simply via adb install -r <link to APK> . For debugging purposes, I frequently need to re-test older APK's...