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Why use Abstract Base Classes in Python?
...ch more readable than hasattr(x, '__iter__') or an equivalent try...except block. (If you didn't know Python, which of those three would make the intention of the code clearest?)
That said, I find that I rarely need to write my own ABC and I typically discover the need for one through refactoring. ...
AI2 Media Notification
...so contains controls that are supposed to control the player. To make the blocks in the project simple, there are the functions Play, Pause, Rewind, etc., which trigger the same events as the notification does. So there is no need for double the code for the controls on the user interface. All you...
Objective-C ARC: strong vs retain and weak vs assign
...
When we use weak? 1. For UI objects, 2. delegates , 3. blocks (weakSelf should be used instead of self to avoid memory cycles (as was mentioned above)
– bucherland
Mar 25 '15 at 12:30
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Injecting $scope into an angular service function()
...t finish? Or is $scope.students going to be partially filled, if this code block is working in progress? students.push(student);
– Yc Zhang
Dec 7 '15 at 22:03
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How can I get the current date and time in UTC or GMT in Java?
...nstant instant = Instant.now();
That Instant class is the basic building block in java.time, representing a moment on the timeline in UTC with a resolution of nanoseconds.
In Java 8, the current moment is captured with only up to milliseconds resolution. Java 9 brings a fresh implementation of C...
How to properly overload the
...);
};
}
You need to enclose the function definition with a namespace block instead of just using namespace Math;.
Matrix.cpp
using namespace Math;
using namespace std;
namespace Math {
ostream& operator<<(ostream& os, const Matrix& obj) {
os << obj.XYZ &l...
How to reduce iOS AVPlayer start delay
...ng x4;
})pu_duration;
- (void)pu_loadDurationWithCompletionHandler:(id /* block */)arg1;
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Single script to run in both Windows batch and Linux Bash?
...e multiple lines on both platforms and only execute them at the end of the block, you can do this:
:;( #
:; echo 'Hello' #
:; echo 'bash!' #
:; );<<'here-document delimiter'
(
echo Hello
echo cmd!
) & rem ^
here-document delimiter
As long as there is no cmd line with...
Does Python optimize tail recursion?
...
@Alexey I am not sure I can write code in a block-style inside a comment, but you can of course use the def syntax for your functions, and actually the last example above relies on a condition. In my post baruchel.github.io/python/2015/11/07/… you can see a paragraph...
How to set time zone of a java.util.Date?
...zone (ZonedDateTime with ZoneId)
Instant
In java.time, the basic building block is Instant, a moment on the time line in UTC. Use Instant objects for much of your business logic.
Instant instant = Instant.now();
OffsetDateTime
Apply an offset-from-UTC to adjust into some locality’s wall-clock ti...