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NSOperation vs Grand Central Dispatch
... answer. All the benefits of NSOperationQueue (dependencies, debugability, etc.) apply to block operations too.
– BJ Homer
Apr 30 '12 at 4:40
4
...
What are the differences between the BLOB and TEXT datatypes in MySQL?
...our version of mysql use TEXT for large text posts such as blog body posts etc. BLOB shouldn't be used for storing very long URL addresses or large amounts of text. It's normally used to store images or other binary based objects. Personally I never use BLOB or TEXT and store large amounts of data i...
Django: How to manage development and production settings?
...mpletely different location (e.g. on a production server, storing them in /etc/). This allows for separating configuration from application files. You may or may not want that, it depends on how your app is structured.
shar...
How to change field name in Django REST Framework
...you can give to serializer fields, relations and other related serializers etc.. Not sure why you say the answer is incomplete.
– iankit
Oct 14 '16 at 5:26
...
How can I cast int to enum?
...u know how it roughly translates to f.ex. processor operations and memory fetches / writes. If you ask how to get to that level, I'd suggest building a ton of small test cases, making them tougher as you go, try to predict the outcome every time, and test them afterwards (incl. decompilation, etc). ...
Best way to define private methods for a class in Objective-C
...r) =
^(NSInteger a, NSInteger b)
{
return a + b;
};
//public methods, etc.
- (NSObject) thePublicOne
{
return createTheObject();
}
@end
I'm aware this is an old question, but it's one of the first I found when I was looking for an answer to this very question. I haven't seen this soluti...
What are bitwise operators?
...lculations.
operations:
bitwise AND
bitwise OR
bitwise NOT
bitwise XOR
etc
List item
AND|0 1 OR|0 1
---+---- ---+----
0|0 0 0|0 1
1|0 1 1|1 1
XOR|0 1 NOT|0 1
---+---- ---+---
0|0 1 |1 0
1|1 0
Eg.
...
Yes/No message box using QMessageBox
... predefine the whole thing (create and store the message box in a variable etc.) and then simply call it when needed?
– rbaleksandar
Oct 27 '14 at 20:57
1
...
What does axis in pandas mean?
...0,:,:] will refer to the 0-th slice, a[1,:,:] will refer to the 1-st slice etc.
a.sum(axis=0) will apply sum() along the 0-th axis of a. You will add all the slices and end up with one slice of shape (5,7).
a.sum(axis=0) is equivalent to
b = np.zeros((5,7))
for i in range(5):
for j in range(...
Media Queries: How to target desktop, tablet, and mobile?
...nd more semantic the DOM structure with nav, header, main, section, footer etc. (avoiding abominations like div class="header" with nested inner div tags) the easier it will be to engineer responsiveness, especially avoiding floats by using CSS Grid Layout (Sarah Drasner's grid generator is a great ...