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How is it possible to declare nothing inside main() in C++ and yet have a working application after
In an interview I was confronted with a question such as this:
6 Answers
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Greedy vs. Reluctant vs. Possessive Quantifiers
I found this excellent tutorial on regular expressions and while I intuitively understand what "greedy", "reluctant" and "possessive" quantifiers do, there seems to be a serious hole in my understanding.
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Most efficient way to convert an HTMLCollection to an Array
Is there a more efficient way to convert an HTMLCollection to an Array, other than iterating through the contents of said collection and manually pushing each item into an array?
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What's the difference between a file descriptor and file pointer?
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A file descriptor is a low-level integer "handle" used to identify an opened file (or socket, or whatever) at the kernel level, in Linux and other Unix-like systems.
You pass "naked" file descriptors to actual Unix calls, such as read(), writ...
Binding a Button's visibility to a bool value in ViewModel
How do I bind the visibility of a button to a bool value in my ViewModel?
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Is there any way to do HTTP PUT in python
...thon. From my brief reading of the urllib2 docs, it only does HTTP POST . Is there any way to do an HTTP PUT in python?
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Why am I seeing an “origin is not allowed by Access-Control-Allow-Origin” error here? [duplicate]
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Javascript is limited when making ajax requests outside of the current domain.
Ex 1: your domain is example.com and you want to make a request to test.com => you cannot.
Ex 2: your domain is example.com and you want to make a ...
How do I detect what .NET Framework versions and service packs are installed?
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The registry is the official way to detect if a specific version of the Framework is installed.
Which registry keys are needed change depending on the Framework version you are looking for:
Framework Version Registry Key
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What components are MVC in JSF MVC framework?
In JSF MVC framework who is Model, View, and Controller?
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When saving, how can you check if a field has changed?
..._ method of models.Model so that you keep a copy of the original value. This makes it so that you don't have to do another DB lookup (which is always a good thing).
class Person(models.Model):
name = models.CharField()
__original_name = None
def __init__(self, *args, **kwargs):
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