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Which annotation should I use: @IdClass or @EmbeddedId
...olution was very similar to mine but it used EmbeddedId instead. I modeled my objects after those in the book it now behaves correctly.
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How do I get the type of a variable?
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As with any rule, there are exceptions (hence my 'usually'!), and containers do tend add complexity to the type theory. I've never been overfond of containers-of-polymorphic-objects… in most cases, templated uniform container types suffice and are much cleaner.
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How to set the thumbnail image on HTML5 video?
...t thumbnail image on HTML5 video?
I want to see some pictures before play.
My code looks like this:
7 Answers
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filtering NSArray into a new NSArray in Objective-C
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NSPredicate is dead, long live blocks! cf. my answer below.
– Clay Bridges
Oct 19 '11 at 23:09
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How to access the ith column of a NumPy multidimensional array?
...Section 1.4 (Indexing) of the NumPy reference. This is quick, at least in my experience. It's certainly much quicker than accessing each element in a loop.
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How to initialize std::vector from C-style array?
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In my case, the assignment will happen repeatedly.
– Frank
Mar 12 '10 at 18:36
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In Java 8 how do I transform a Map to another Map using a lambda?
... makes it much clearer. But I think that just gives me a straight copy of my original map, not a new map where the values have been turned into defensive copies. Am I understanding you correctly that the reason we can just use (map2::put) is that the same arguments are going into the lambda, e.g. ...
Why would someone use WHERE 1=1 AND in a SQL clause?
...ifference between zero and many conditions in that ONE place in your code. My guess is though, advocates for 'Where 1 = 1' sprinkle it throughout their codebase, which brings me to the conclusion laziness breeds laziness.
– Jason S
Feb 22 '16 at 6:51
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Path.Combine for URLs?
...ne separator character between parts:
var url = Url.Combine(
"http://MyUrl.com/",
"/too/", "/many/", "/slashes/",
"too", "few?",
"x=1", "y=2"
// result: "http://www.MyUrl.com/too/many/slashes/too/few?x=1&y=2"
Get Flurl.Http on NuGet:
PM> Install-Package Flurl.Http
Or ge...
Ruby arrays: %w vs %W
...n keep coming up and the answers don't always seem clear to me. So, here's my thoughts.
%w and %W are examples of General Delimited Input types, that relate to Arrays. There are other types that include %q, %Q, %r, %x and %i.
The difference between upper and lower case is that it gives us access t...