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Why doesn't println! work in Rust unit tests?
...ns because Rust test programs hide the stdout of successful tests in order for the test output to be tidy. You can disable this behavior by passing the --nocapture option to the test binary or to cargo test:
#[test]
fn test() {
println!("Hidden output")
}
Invoking tests:
% rustc --test main.rs;...
Emulate ggplot2 default color palette
What function can I use to emulate ggplot2's default color palette for a desired number of colors. For example, an input of 3 would produce a character vector of HEX colors with these colors:
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How do I increase the number of displayed lines of a Java stack trace dump?
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You don't need to; that information is present elsewhere in the stack trace. From the docs of printStackTrace():
Note the presence of lines containing the characters "...". These lines indicate that the remainder of the stack trace for this exception...
How to create a temporary directory?
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This is a OS X vs Linux thing. See this question for a version that works on both: unix.stackexchange.com/questions/30091/…
– jwhitlock
Jun 9 '14 at 19:25
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POST data in JSON format
I have some data that I need to convert to JSON format and then POST it with a JavaScript function.
4 Answers
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What do I return if the return type of a method is Void? (Not void!)
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Use return null. Void can't be instantiated and is merely a placeholder for the Class<T> type of void.
What's the point of Void?
As noted above, it's a placeholder. Void is what you'll get back if you, for example, use reflection to look at a method with a return type of void. (Techni...
Combining Multiple Commits Into One Prior To Push
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For your first question, no, there's nothing wrong with pushing multiple commits at once. Many times, you may want to break your work down into a few small, logical commits, but only push them up once you feel like the whole ...
How do you do a case insensitive search using a pattern modifier using less?
...an also type command -I while less is running. It toggles case sensitivity for searches.
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How to make my layout able to scroll down?
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For using scroll view along with Relative layout :
<ScrollView
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:fill...
How to Diff between local uncommitted changes and origin
...eave the master out. I had tried a combination where I was doing a fetch before, but when I did git diff master origin/master it was still comparing against the committed version (obvious in retrospect). But leaving out the master now compares local changes against the fetched version.
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