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C# loop - break vs. continue
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The break statement also comes in handy when polling for a valid response from somebody or something. Instead of:
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While the answer is invalid:
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You could eliminate some duplication and use:
While True:
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If the answer is valid:
bre...
How can I check whether an array is null / empty?
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ArrayUtils.isNotEmpty(testArrayName) from the package org.apache.commons.lang3 ensures Array is not null or empty
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How to subtract X day from a Date object in Java?
...ateTime.ofInstant(in.toInstant(), ZoneId.systemDefault());
Date out = Date.from(ldt.atZone(ZoneId.systemDefault()).toInstant());
Java 7 and earlier
Use Calendar's add() method
Calendar cal = Calendar.getInstance();
cal.setTime(dateInstance);
cal.add(Calendar.DATE, -30);
Date dateBefore30Days = c...
What's the syntax for mod in java
...ng to programmers how to implement algorithms with mathematical properties from modular arithmetic. Remainder is NOT modulus but one can quickly derive a modulus from remainders.
– Jim
Aug 24 '12 at 22:12
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What does “xmlns” in XML mean?
... that needs to be unique so as to indicate that it is a separate namespace from others and any potential duplicate tags will therefore be interpreted correctly. So the URI will often point to nothing.
– foochow
Jan 27 '14 at 19:52
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C++11 rvalues and move semantics confusion (return statement)
...e same, and neither is cv-qualified (don't return const types). Stay away from returning with the condition (:?) statement as it can inhibit RVO. Don't wrap the local in some other function that returns a reference to the local. Just return my_local;. Multiple return statements are ok and will ...
Is JavaScript guaranteed to be single-threaded?
...r or timeout is entered, you remain completely in control until you return from the end of your block or function.
(*: ignoring the question of whether browsers really implement their JS engines using one OS-thread, or whether other limited threads-of-execution are introduced by WebWorkers.)
Howev...
What are type lambdas in Scala and what are their benefits?
...icated type lambdas that are a pain to write out inline. Here's an example from my code from today:
// types X and E are defined in an enclosing scope
private[iteratee] class FG[F[_[_], _], G[_]] {
type FGA[A] = F[G, A]
type IterateeM[A] = IterateeT[X, E, FGA, A]
}
This class exists exclusiv...
Global variables in Javascript across multiple files
...his JavaScript code I find myself in need of knowing if a certain function from helpers.js has been called.
8 Answers
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Any decent text diff/merge engine for .NET? [closed]
... can grab the COM component that uses Google's Diff/Patch/Match. It works from .NET.
Update, 2010 Oct 17: The Google Diff/Patch/Merge code has been ported to C#. The COM component still works, but if you're coming from .NET, you'll wanna use the .NET port directly.
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