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What does the comma operator , do?
...on and the evaluation of the RHS (see Shafik Yaghmour's answer for a quote from the C99 standard). This is an important property of the comma operator.
– Jonathan Leffler
Jun 20 '14 at 20:47
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Escaping single quote in PHP when inserting into MySQL [duplicate]
...n (which you should know is a bad idea). This means that strings gathered from $_GET, $_POST and $_COOKIES are escaped for you (i.e., "O'Brien" -> "O\'Brien").
Once you store the data, and subsequently retrieve it again, the string you get back from the database will not be automatically escape...
When saving, how can you check if a field has changed?
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I use following mixin:
from django.forms.models import model_to_dict
class ModelDiffMixin(object):
"""
A model mixin that tracks model fields' values and provide some useful api
to know what fields have been changed.
"""
def ...
Execute a command line binary with Node.js
I am in the process of porting a CLI library from Ruby over to Node.js. In my code I execute several third party binaries when necessary. I am not sure how best to accomplish this in Node.
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The most sophisticated way for creating comma-separated Strings from a Collection/Array/List?
...and in this strings I have to put several restrictions in the where-clause from a list/array/collection. Should look like this:
...
How much is the overhead of smart pointers compared to normal pointers in C++?
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My answer is different from the others and i really wonder if they ever profiled code.
shared_ptr has a significant overhead for creation because of it's memory allocation for the control block (which keeps the ref counter and a pointer list to a...
How do I get the current date in JavaScript?
...I still don't get it, is the line if(dd<10){dd='0'+dd} ... why < 10? from what I understand from the code is if day's character is less than 2, just add a preceding 0 in front of the day.. but why 10?
– imin
Jul 15 '13 at 15:15
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Hello World in Python [duplicate]
...on't know why this isn't more common knowledge, because I just copy-pasted from the first Google result for Python Hello World.
– MiffTheFox
Jul 3 '09 at 0:29
1
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What is &&& operation in C
...way. But even if it were standard, the maximal munch rule would prevent it from being parsed that way (unless you insert a space).
– Keith Thompson
Dec 27 '12 at 20:36
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Why aren't my ball (objects) shrinking/disappearing?
http://jsfiddle.net/goldrunt/jGL84/42/
this is from line 84 in this JS fiddle. There are 3 different effects which can be applied to the balls by uncommenting lines 141-146. The 'bounce' effect works as it should, but the 'asplode' effect does nothing. Should I include the 'shrink' function inside ...