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Difference between a Seq and a List in Scala
...rder of elements. Sequences provide a method apply() for indexing, ranging from 0 up to the length of the sequence. Seq has many subclasses including Queue, Range, List, Stack, and LinkedList.
A List is a Seq that is implemented as an immutable linked list. It's best used in cases with last-in firs...
ZeroMQ的学习和研究（PHP代码实例） - C/C++ - 清泛网 - 专注C/C++及内核技术
... Hello World server
* Binds REP socket to tcp://*:5555
* Expects "Hello" from client, replies with "World"
* @author Ian Barber <ian (dot) barber (at) gmail (dot) com>
*/
$context = new ZMQContext (1);
// Socket to talk to clients
$responder = new ZMQSocket ($context, ZMQ::SOCKET_REP);
$resp...
Get decimal portion of a number with JavaScript
...e acceptable. To me it isn't... Hence, to solve this challenge I'd refrain from using Math.* or % operations.
– Marcel Stör
Apr 2 '14 at 14:04
66
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Check whether an array is empty [duplicate]
...)) {
}
array_filter() function's default behavior will remove all values from array which are equal to null, 0, '' or false.
Otherwise in your particular case empty() construct will always return true if there is at least one element even with "empty" value.
...
Error:(1, 0) Plugin with id 'com.android.application' not found
...
In my case, I download the project from GitHub and the Gradle file was missing. So I just create a new project with success build. Then copy-paste the Gradle missing file. And re-build the project is working for me.
...
Event handling for iOS - how hitTest:withEvent: and pointInside:withEvent: are related?
...rn is YES, it sends hitTest:withEvent: messages to its subviews.
it starts from the top-level subview, and continues to other views until a subview
returns a non-nil object, or all subviews receive the message.
If a subview returns a non-nil object in the first time, the first hitTest:withEvent: ret...
How to get the cuda version?
...
As Jared mentions in a comment, from the command line:
nvcc --version
(or /usr/local/cuda/bin/nvcc --version) gives the CUDA compiler version (which matches the toolkit version).
From application code, you can query the runtime API version with
cuda...
What are the big differences between TFVC (TFS Version Control) and Git for source control when usin
...s a few other features that are great too! The ability to branch and merge from one repository to another is very powerful. I recommend you look up the Pro Git book for those. Git in TFS is just another git server, it has pretty much all features that the standard Git has.
The ability to rewrite h...
How does the Java 'for each' loop work?
... java.lang.Iterable -- it doesn't have
to be a list, or some collection from
java.util. Even your own types,
therefore, can be used with this
syntax.
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Format floats with standard json module
...defect in the standard library json package). E.g., this code:
import json
from json import encoder
encoder.FLOAT_REPR = lambda o: format(o, '.2f')
print(json.dumps(23.67))
print(json.dumps([23.67, 23.97, 23.87]))
emits:
23.67
[23.67, 23.97, 23.87]
as you desire. Obviously, there should be an...