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Can every recursion be converted into iteration?
... And the bs about semantics??? Really? This is a question on syntactic transformations, and somehow it's became a great way to name drop Dijkstra and imply you know something about the pi-calculus? Let me make this clear: whether one looks at the denotational semantics of a language or some oth...
How to get orientation-dependent height and width of the screen?
...imensions in both portrait and landscape except it reports having a rotate transform:
(gdb) po [[[[UIApplication sharedApplication] keyWindow]
rootViewController] view]
<UILayoutContainerView: 0xf7296f0; frame =
(0 0; 320 480); transform = [0, -1, 1, 0, 0, 0]; autoresize = W+H;
lay...
How do I concatenate or merge arrays in Swift?
... Returns an array containing the concatenated results of calling the given transformation with each element of this sequence.
func flatMap<SegmentOfResult>(_ transform: (Self.Element) throws -> SegmentOfResult) rethrows -> [SegmentOfResult.Element] where SegmentOfResult : Sequence
Th...
Hibernate Criteria returns children multiple times with FetchType.EAGER
... over the place. Then I run around and fix all my DAOs by appending result transformers and whatnot. User experience == very negative. I understand that some people absolutely love having duplicates for bizarre reasons, but why can't I say "fetch these objects FASTER but do not bug me with duplicate...
How is null + true a string?
...d, the following code:
string b = null + true;
Console.WriteLine(b);
is transformed into this by the compiler:
Console.WriteLine(true);
The reasoning behind this "optimization" is a bit weird I must say, and does not rhyme with the operator selection I would expect.
Also, the following code:...
Using success/error/finally/catch with Promises in AngularJS
...4 maybe it is better to use the regular promise methods then and catch and transform the response within those methods and return the promise of that transformed response.
I am showing the same example with both approaches and a third in-between approach:
success and error approach (success and er...
What is “vectorization”?
... the term "vectorization" is also used to describe a higher level software transformation where you might just abstract away the loop altogether and just describe operating on arrays instead of the elements that comprise them)
The difference between vectorization and loop unrolling:
Consider the ...
Showing data values on stacked bar chart in ggplot2
...rs (simplified using comment by @DWin)
Data <- ddply(Data, .(Year),
transform, pos = cumsum(Frequency) - (0.5 * Frequency)
)
# library(dplyr) ## If using dplyr...
# Data <- group_by(Data,Year) %>%
# mutate(pos = cumsum(Frequency) - (0.5 * Frequency))
# plot bars and add text
p <...
What is the difference between svg's x and dx attribute?
...xt")
.attr("x",function (d) {return d;})
.attr("y",100)
.attr("transform", function(d, i) {return "rotate("+45*i+","+d+",100)";});
// With the dy=0.35em offset
group.append("text")
.text("My text")
.attr("x",function (d) {return d;})
.attr("y",200)
.attr("dy","0.35em")
...
Convert object to JSON in Android
...:gson:2.8.2'
To use the library in a method.
Gson gson = new Gson();
//transform a java object to json
System.out.println("json =" + gson.toJson(Object.class).toString());
//Transform a json to java object
String json = string_json;
List<Object> lstObject = gson.fromJson(json_ string, Obj...