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Recursion or Iteration?
... they are designed (Fibonacci sequences, traversing a tree like structure, etc.). Recursion makes the algorithm more succinct and easier to understand (therefore shareable and reusable).
Also, some recursive algorithms use "Lazy Evaluation" which makes them more efficient than their iterative brot...
JavaScript object: access variable property by name as string [duplicate]
...he fact that right could also come from a variable, function return value, etc., when using bracket notation.
If you NEED a function for it, here it is:
function read_prop(obj, prop) {
return obj[prop];
}
To answer some of the comments below that aren't directly related to the original que...
How do I reset a sequence in Oracle?
..._DIFF. Could you let me know how you generated the script, which procedure etc.? I would try to test it too.
– Lalit Kumar B
May 8 '15 at 9:38
...
ASP.NET MVC 3 - Partial vs Display Template vs Editor Template
...ually used for data models (i.e. models that represent rows in a database, etc)
On the other hand Partial is view-centric in that you are mostly concerned with choosing the correct partial view. The view doesn't necessarily need a model to function correctly. It can just have a common set of markup...
How to check for null in Twig?
...ow) to check whether a variable is empty (null, false, empty string/array, etc):
{% if var|default is empty %}
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PHP function to get the subdomain of a URL
... That works for everything that has a single 'word' TLD like net, com, biz etc. However when dealing with co.uk, for example, it does not. As seen here This is actually a harder problem to solve.
– Mike Lewis
Mar 13 '11 at 23:12
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What is the correct way to create a single-instance WPF application?
...) {
Application.EnableVisualStyles();
Application.SetCompatibleTextRenderingDefault(false);
Application.Run(new Form1());
mutex.ReleaseMutex();
} else {
MessageBox.Show("only one instance at a time");
}
}
}
So, if o...
How to enumerate an enum with String type?
... I wonder how one might iterate through other types (string, custom types, etc.).
– Jay Imerman
Jun 17 '14 at 1:57
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What are C++ functors and their uses?
... library, defining Is5() is quite simple. ANd you can create Is7(), Is32() etc. Further, that's just an example. THe functor could be much more complicate.
– James Curran
Sep 30 '17 at 2:57
...
Subprocess changing directory
... example, to execute ls in the root directory, you either can do
wd = os.getcwd()
os.chdir("/")
subprocess.Popen("ls")
os.chdir(wd)
or simply
subprocess.Popen("ls", cwd="/")
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