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How to define a custom ORDER BY order in mySQL
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Man you just saved m>me m> a rewrite in magento :)
– Erik Simonic
Feb 6 '15 at 15:18
1
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Is returning by rvalue reference more efficient?
...mporary into ab, or do RVO to omit doing a move or copy altogether. I recomm>me m>nd you to read BoostCon09 Rvalue References 101 which explains the matter, and how (N)RVO happens to interact with this.
Your case of returning an rvalue reference would be a good idea in other occasions. Imagine you hav...
What is the purpose of setting a key in data.table?
I am using data.table and there are many functions which require m>me m> to set a key (e.g. X[Y] ). As such, I wish to understand what a key does in order to properly set keys in my data tables.
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How to include “zero” / “0” results in COUNT aggregate?
I've just got myself a little bit stuck with som>me m> SQL. I don't think I can phrase the question brilliantly - so let m>me m> show you.
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Copy multiple files in Python
...s copied).
import os
import shutil
src_files = os.listdir(src)
for file_nam>me m> in src_files:
full_file_nam>me m> = os.path.join(src, file_nam>me m>)
if os.path.isfile(full_file_nam>me m>):
shutil.copy(full_file_nam>me m>, dest)
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Converting dict to OrderedDict
I am having som>me m> trouble using the collections.OrderedDict class. I am using Python 2.7 on Raspbian, the Debian distro for Raspberry Pi. I am trying to print two dictionaries in order for comparison (side-by-side) for a text-adventure. The order is essential to compare accurately.
No matter what I...
Programmatically fire button click event?
... the button via code, not manually as a user. Is it possible in iOS developm>me m>nt? Please provide your suggestions and guide m>me m> how to do that.
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Is there a function to make a copy of a PHP array to another?
...arrays are assigned by copy, while objects are assigned by reference. This m>me m>ans that:
$a = array();
$b = $a;
$b['foo'] = 42;
var_dump($a);
Will yield:
array(0) {
}
Whereas:
$a = new StdClass();
$b = $a;
$b->foo = 42;
var_dump($a);
Yields:
object(stdClass)#1 (1) {
["foo"]=>
int(4...
Can't install via pip because of egg_info error
...as wrong. I never installed the setuptools for python, so it was missing som>me m> vital files, like the egg ones.
If you find yourself having my issue above, download this file and then in powershell or command prompt, navigate to ez_setup’s directory and execute the command and this will run the fil...
Is there a JavaScript strcmp()?
Can anyone verify this for m>me m>? JavaScript does not have a version of strcmp(), so you have to write out som>me m>thing like:
5 A...