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Java 8 Streams - collect vs reduce
...copying, and the run
time would be O(n^2) in the number of characters. A more performant
approach would be to accumulate the results into a StringBuilder,
which is a mutable container for accumulating strings. We can use the
same technique to parallelize mutable reduction as we do with ordin...
Await on a completed task same as task.Result?
...on at all, unless it specifically wants to.
The second reason is a little more subtle. As I describe on my blog (and in the book), Result/Wait can cause deadlocks, and can cause even more subtle deadlocks when used in an async method. So, when I'm reading through code and I see a Result or Wait, th...
Get current time in milliseconds in Python?
... Windows. Wouldn't time.clock() call (QueryPerformanceCounter()) introduce more noise than it might reduce? See Precision is not the same as accuracy.
– jfs
Apr 24 '15 at 20:47
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Looping through localStorage in HTML5 and JavaScript
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@Oscar, parse is more secure because it protects you from code execution. And often, it's also much faster. See blog.mozilla.com/webdev/2009/02/12/native-json-in-firefox-31
– Matthew Flaschen
Jun 29 '1...
Running PostgreSQL in memory only
...contained environment you can put the Postgres binaries into SVN (but it's more than just a single executable).
You will need to run initdb to setup your test database before you can do anything with this. This can be done from a batch file or by using Runtime.exec(). But note that initdb is not s...
Print a file, skipping the first X lines, in Bash [duplicate]
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Best way to list files in Java, sorted by Date Modified?
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What is the meaning and difference between subject, user and principal?
...n in that case the user driving the request is still the subject.
User is more specific than subject or principal in that it usually refers to an interactive operator. That is why we have a graphical User Interface and not a Graphical Principal Interface. A user is an instance of subject that res...
How to get element by class name? [duplicate]
...actually getElementsByClassName, not getElementByClassName, simply because more than one element on the page can have the same class, hence: Elements.
The return value of this will be a NodeList instance, or a superset of the NodeList (FF, for instance returns an instance of HTMLCollection). At any...