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CSS: Animation vs. Transition
So, I understand how to perform both CSS3 transitions and animations . What is not clear, and I've googled, is when to use which.
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Booleans, conditional operators and autoboxing
...time:
E1: `true ? returnsNull() : false` - boolean (auto-unboxing 2nd operand to boolean)
E2: `true ? null : false` - Boolean (autoboxing of 3rd operand to Boolean)
See Java Language Specification, section 15.25 Conditional Operator ? :
For E1, the types of the 2nd and 3rd operands are Boolean...
What special characters must be escaped in regular expressions?
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Which characters you must and which you mustn't escape indeed depends on the regex flavor you're working with.
For PCRE, and most other so-called Perl-compatible flavors, escape these outside character classes:
.^$*+?()[{\|
and these inside charac...
How to get the IP address of the docker host from inside a docker container
... title says. I need to be able to retrieve the IP address the docker hosts and the portmaps from the host to the container, and doing that inside of the container.
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Recursively look for files with a specific extension
I'm trying to find all files with a specific extension in a directory and its subdirectories with my bash (Latest Ubuntu LTS Release).
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How do you test functions and closures for equality?
The book says that "functions and closures are reference types". So, how do you find out if the references are equal? == and === don't work.
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Using PUT method in HTML form
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XHTML 1.x forms only support GET and POST. GET and POST are the only allowed values for
the "method" attribute.
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Catching java.lang.OutOfMemoryError?
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I agree and disagree with most the responses here.
There are a number of scenarios where you may wish to catch an OutOfMemoryError and in my experience (on Windows and Solaris JVMs), only very infrequently is OutOfMemoryError the de...
When should I use Debug.Assert()?
...graduated with a CS degree. I've known about assertions for a while in C++ and C, but had no idea they existed in C# and .NET at all until recently.
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Uses for Optional
...eem to swing between wanting to use it everywhere something may be null , and nowhere at all.
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