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What is the meaning and difference between subject, user and principal?
...deterministic fashion, "user" is the right word.
Subject/Object inherits from the same terms as used in grammar. In a sentence the subject is the actor and the object is the thing acted on. In this sense the use has been around since before computers were invented. In a security context, a subj...
How to convert an NSTimeInterval (seconds) into minutes
I've got an amount of seconds that passed from a certain event. It's stored in a NSTimeInterval data type.
12 Answers
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Sending websocket ping/pong frame from browser
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Ping is meant to be sent only from server to client, and browser should answer as soon as possible with Pong OpCode, automatically. So you have not to worry about that on higher level.
Although that not all browsers support standard as they suppose to, t...
Meaning of Choreographer messages in Logcat [duplicate]
...ou will still skip 30 frames (naughty!) but you won't be warned about it.
From the 3 steps involved its clear that it isn't only animations that can trigger the warning: Invalidating a significant portion of a large View hierarchy or a View with a complicated onDraw method might be enough.
For exa...
Why is exception handling bad?
... It will make sure you release resources on a throw, but doesn't free you from having to think about corruption of object state and callers seeing intermediate values. So, for a lot of people, it's easier to say, by fiat of coding style, no exceptions. If you restrict the kind of code you write, ...
how to convert an RGB image to numpy array?
...ng Library) and Numpy work well together.
I use the following functions.
from PIL import Image
import numpy as np
def load_image( infilename ) :
img = Image.open( infilename )
img.load()
data = np.asarray( img, dtype="int32" )
return data
def save_image( npdata, outfilename ) :
...
What is the difference between Hibernate and Spring Data JPA
...nce api which provide specification for persisting, reading, managing data from your java object to relations in database.
Hibernate: There are various provider which implement jpa. Hibernate is one of them. So we have other provider as well. But if using jpa with spring it allows you to switch to d...
Javascript foreach loop on associative array object
... @ceving, can you explain more on why not use var in loops? I come from C++/PHP background and I don't understand this. scoping does exist in the loop, but temporary, so I am not sure what you mean.
– Dennis
Jul 21 '16 at 21:33
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Retrieve filename from file descriptor in C
...}
Since I never remember where MAXPATHLEN is defined, I thought PATH_MAX from syslimits would be fine.
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Django - Difference between import django.conf.settings and import settings
... settings(.py) module of your Django project (if you are writing this code from the "root" package of your application, of course)
from django.conf import settings
Will import settings object from django.conf package (Django's provided files). This is important, because
[..] note that your co...