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What are the use cases of Graph-based Databases (http://neo4j.org/)? [closed]
...or PostgreSQL, or MySQL), but it was slightly slower than the original. At least one large enterprise even had an Oracle-only policy, but luckily Oracle bought Berkeley DB. We also had to write a lot of extra tools - we couldn't just use Crystal Reports for example.
The other disadvantage of our gr...
Does Java SE 8 have Pairs or Tuples?
...mplements it.
Having a Pair class in Java SE was proposed and rejected at least once. See this discussion thread on one of the OpenJDK mailing lists. The tradeoffs are not obvious. On the one hand, there are many Pair implementations in other libraries and in application code. That demonstrates a n...
Why covariance and contravariance do not support value type
...s topic in general.
EDIT: Having reread Eric's blog post myself, it's at least as much about identity as representation, although the two are linked. In particular:
This is why covariant and contravariant conversions of interface and delegate types require that all varying type arguments be of...
How is AngularJS different from jQuery
... is necessary as angular is an MVC-Based framework. It also requires an at least general blueprint of the finalized application, since coding depends much on how you want the interactions to be completed.
jQuery is like a free poetry, you write lines and keep some relations and momentum appropriate...
Where do I find the line number in the Xcode editor?
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Thanks, I will use that at least some of the time. But what I really want is to just display the number of the line I am on.
– William Jockusch
May 5 '11 at 17:27
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val-mutable versus var-immutable in Scala
...our possibilities (val and var, mutable and immutable), this one makes the least sense. I do often use val mutable.
– Jim Pivarski
Sep 11 '13 at 1:14
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What are the use cases for selecting CHAR over VARCHAR in SQL?
...ead for a VARCHAR. This may vary from DB to DB, but generally, there is at least 1 byte of overhead needed to indicate length or EOL on a VARCHAR.
As was pointed out by Gaven in the comments: Things change when it comes to multi-byte characters sets, and is a is case where VARCHAR becomes a much bet...
What characters are valid for JavaScript variable names?
... Regarding Encodings: please do use non-ASCII characters, at least in your string literals. We have to eliminate all the stupid software that gets the encodings "screwed up all the time". What a bliss to just type Console.WriteLine("привет") in C# and have it actually work!
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In Functional Programming, what is a functor?
...hematics. It has been borrowed by designers of functional languages in at least two different ways.
In the ML family of languages, a functor is a module that takes one or more other modules as a parameter. It's considered an advanced feature, and most beginning programmers have difficulty with i...
What is a Shim?
...better known as the "Gang of Four".
The "Gang of Four" text outlines at least 3 well established patterns known as, "Proxy", "Adapter" and "Facade" which all provide “shim” type functionality. In most fields it’s often times the use and or miss use of different acronyms for the same root c...