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Is there a performance impact when calling ToList()?
...our application.
What's wrong with the code in the question
Directory.GetFiles goes through the folder and returns all files' names immediately into memory, it has a potential risk that the string[] costs a lot of memory, slowing down everything.
What should be done then
It depends. If you(as we...
How can I create directory tree in C++/Linux?
...
With C++17 or later, there's the standard header <filesystem> with
function
std::filesystem::create_directories
which should be used in modern C++ programs.
The C++ standard functions do not have the POSIX-specific explicit
permissions (mode) argument, though.
However, h...
Union of dict objects in Python [duplicate]
...>>> a[1]
1
>>> a[3]
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "<stdin>", line 7, in __getitem__
KeyError: 3
>>>
NB: If one wants to lazily maintain a Union "view" of two
or more dictionaries, check collections.Cha...
vector::at vs. vector::operator[]
...the recursion, there might be an access violation by the writer of the XML file. In that case, you usually want to bump out of all the levels of recursion and just reject the whole file (or any kind of "coarser" structure). This is where at comes in handy. You can just write the analysis code as-if ...
Using a strategy pattern and a command pattern
... is algorithm. For example, one strategy object knows how to output to XML file, while the other outputs to, say, JSON. Different algorithms are kept (encapsulated) in different classes. It is as simple as that.
In case of command, what varies is the request itself. Request may come from File Menu ...
How can I access an internal class from an external assembly?
... to allow "Friend" assemblies access to internals:
In the AssemblyInfo.cs file of the project you add a line for each assembly.
[assembly: InternalsVisibleTo("name of assembly here")]
this info is available here.
Hope this helps.
...
Cross Domain Form POSTing
...he outcome would be the same. Lesson here really: check any third party JS files ;)
– Chris
Jul 5 '13 at 9:38
20
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How do you make Vim unhighlight what you searched for? [duplicate]
I search for "nurple" in a file. I found it, great. But now, every occurrence of "nurple" is rendered in sick black on yellow. Forever.
...
How can I remove all objects but one from the workspace in R?
...
Likewise, click the Name box, which selects all the files, and then deselect all the files you want to keep.
– Stephen
Dec 27 '17 at 15:18
add a comment...
symfony 2 twig limit the length of the text and put three dots
... To enable the extension in Symfony add this to one of your configuration files: gist.github.com/pschultz/f33bfff72692ca0b6916
– Peter
Jun 27 '14 at 15:00
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