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Use of Java's Collections.singletonList()?
What is the use of Collections.singletonList() in Java? I understand that it returns a list with one element. Why would I want to have a separate method to do that? How does immutability play a role here?
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How to flip UIImage horizontally?
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Objective-C
UIImage* sourceImage = [UIImage imageNamed:@"whatever.png"];
UIImage* flippedImage = [UIImage imageWithCGImage:sourceImage.CGImage
scale:sourceImage.scale
orientation:UIImageOrientationU...
Reading binary file and looping over each byte
... @usr: Well the file objects are buffered internally, and even so this is what was asked for. Not every script needs optimal performance.
– Skurmedel
Jul 8 '12 at 19:12
4
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How to display unique records from a has_many through relationship?
I'm wondering what is the best way to display unique records from a has_many, through relationship in Rails3.
4 Answers
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Bootstrap NavBar with left, center or right aligned items
In Bootstrap , what is the most platform-friendly way to create a navigation bar that has Logo A on the left, menu items in the center, and Logo B on the right?
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Using awk to remove the Byte-order mark
...s too much (at least, my awk complains about it). Beside this it's exactly what I searched, thanks!
– Boldewyn
Jul 1 '09 at 12:21
5
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How to cherry pick a range of commits and merge into another branch?
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@aug Strange, I did not reproduce the issue. What is your git version and whayt is the exact error message you see?
– VonC
Jul 14 '16 at 19:36
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How to select different app.config for several build configurations
...egration/unit testing, and it is a library!". And that is true and this is what you can do (pick only one, don't mix):
1. SlowCheetah - transforms current config file
You can install SlowCheetah - a Visual Studio plug-in that does all low level XML poking (or transformation) for you. The way it wo...
When do you use map vs flatMap in RxJava?
...ays to flatten observables and for sake of simplicity lets assume merge is what we want. Merge basically takes a bunch of observables and emits whenever any of them emits. (Lots of people would argue switch would be a better default. But if you're emitting just one value, it doesn't matter anyway.)
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Separation of JUnit classes into special test package?
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While this convention is interesting, what do you do when the test suite grows? E.g. let's say you have 6 methods in the class, each method has 10 tests. Do you have 60 tests in your class? I usually subdivide the test class (one test class per method). The probl...