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How can I check if a key exists in a dictionary? [duplicate]
...
Interesting, I remember that I read somewhere in the official docs that it is better to ask for forgiveness than permission...
– Yannic Hamann
Jan 15 at 6:36
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XmlSerializer: remove unnecessary xsi and xsd namespaces
...le used for the other question. What follows is copied, verbatim.
After reading Microsoft's documentation and several solutions online, I have discovered the solution to this problem. It works with both the built-in XmlSerializer and custom XML serialization via IXmlSerialiazble.
To whit, I'll u...
In Firebase, is there a way to get the number of children of a node without loading all the node dat
...parent.child('upvotes_count').set(event.data.numChildren());
});
You can read the Documentation to know how to Get Started with Cloud Functions.
Also, another example of counting posts is here:
https://github.com/firebase/functions-samples/blob/master/child-count/functions/index.js
Update Januar...
Convert String to Type in C# [duplicate]
...ore information.
Alternatively, if you have a reference to the assembly already (e.g. through a well-known type) you can use Assembly.GetType:
Assembly asm = typeof(SomeKnownType).Assembly;
Type type = asm.GetType(namespaceQualifiedTypeName);
...
Visual Studio support for new C / C++ standards?
I keep reading about C99 and C++11 and all these totally sweet things that are getting added to the language standard that might be nice to use someday. However, we currently languish in the land of writing C++ in Visual Studio.
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Regex Pattern to Match, Excluding when… / Except between
...four very simple expressions.
For flavors that support free-spacing, this reads particularly well.
(?mx)
### s1: Match line that ends with a period ###
^.*\.$
| ### OR s2: Match anything between parentheses ###
\([^\)]*\)
| ### OR s3: Match any if(...//endif block ###
if\(.*?//e...
How do I get both STDOUT and STDERR to go to the terminal and a log file?
...inish before moving on. More on this here.
The first tee process, which is reading from the_cmd's stdout, writes a copy of that stdout back to the caller because that's what tee does. Its outputs are not redirected, so they make it back to the caller unchanged
The second tee process has it's stdout ...
How do I use extern to share variables between source files?
...ou're not an experienced C programmer, you could (and perhaps
should) stop reading here.
Not so good way to define global variables
With some (indeed, many) C compilers, you can get away with what's
called a 'common' definition of a variable too.
'Common', here, refers to a technique used in Fortra...
How to pull request a wiki page on GitHub?
...applied to the wiki git. See last example link below.
Consider the wiki as read-only view on the documentation. Please note that with github.com you can still view and directly edit the files in the documentation folder. So you still can fix typos within the browser within seconds (even as PR withou...
Get type of all variables
... delays caused by round trip casts/coercions that occur when assigning and reading data to and from disk.
Ideology around R's triad typing system:
R's duck typing system has uncertainty in it. As an analogy, consider a ceramic cup, it can be used to hold a liquid, or used as a projectile like a b...