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Differences between Java 8 Date Time API (java.time) and Joda-Time
...although latter is not type-safe at all due to excessive use of ints).
Performance
See the other answer by @OO7 pointing to the analysis of Mikhail Vorontsov although point 3 (exception catching) is probably obsolete - see this JDK-bug. The different performance (which is in general favour of JSR-...
JSTL in JSF2 Facelets… makes sense?
...ributes depend on results of JSF events such as preRenderView or submitted form values in the model which aren't available during view build time. So, use JSTL tags only to control flow of JSF component tree building. Use JSF UI components to control flow of HTML output generation. Do not bind the v...
How useful/important is REST HATEOAS ( maturity level 3)?
...is API. This second client violates the HATEOAS ideas and has hard-coded information about the resources. It displays a car and a house in different ways.
Can the API still be called RESTful? I think so. It is not the API's fault that one of its clients has violated HATEOAS.
I advise to build REST...
Multiple working directories with Git?
.../other-linked-worktree 1234abc (detached HEAD)
There is also porcelain format option available.
The porcelain format has a line per attribute.
Attributes are listed with a label and value separated by a single space.
Boolean attributes (like 'bare' and 'detached') are listed as a label o...
What is an optional value in Swift?
...It's either nil or it's "Bob". This is not true, the optional doesn't transform into something else. Comparing it to nil is a trick to make easier-to-read code. If an optional equals nil, this just means that the enum is currently set to .none.
Only optionals can be nil
If you try to set a non-opti...
What are the differences between concepts and template constraints?
...
The following information is out of date. It needs to be updated according to the latest Concepts Lite draft.
Section 3 of the constraints proposal covers this in reasonable depth.
The concepts proposal has been put on the back burners fo...
Bomb dropping algorithm
...ave exactly the same minimum vertex cover for original vertices. Such transformation allows to align graph vertices to arbitrary positions on the grid.
If we place graph vertices only to even rows and columns (in such a way that no two edges incident to one vertex form an acute angle), insert "on...
User recognition without cookies or local storage
... or Com Object would have been an easy solution using a hash of hardware information, but these days people are so security-aware that it would be difficult to get people to install these kinds of programs on their system. This leaves you stuck with using Cookies and other, similar tools.
Cookies a...
What are the calling conventions for UNIX & Linux system calls (and user-space functions) on i386 an
... is from the Linux-specific appendix to the ABI, and even for Linux it's informative not normative. (But it is in fact accurate.)
This 32-bit int $0x80 ABI is usable in 64-bit code (but highly not recommended). What happens if you use the 32-bit int 0x80 Linux ABI in 64-bit code? It still trunca...
What is a “cache-friendly” code?
... level I mean the largest == slowest. The cache hit rate is crucial for performance since every cache miss results in fetching data from RAM (or worse ...) which takes a lot of time (hundreds of cycles for RAM, tens of millions of cycles for HDD). In comparison, reading data from the (highest level)...