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How do I check if a list is empty?
...“recommended” and No means “not recommended”):
For sequences, (strings, lists, tuples), use the fact that empty sequences are false.
Yes: if not seq:
if seq:
No: if len(seq):
if not len(seq):
sh...
Use ASP.NET MVC validation with jquery ajax?
...ial views via ajax in the following way:
var view = this.RenderRazorViewToString(partialUrl, viewModel);
return Json(new { success = true, view }, JsonRequestBehavior.AllowGet);
RenderRazorViewToString method:
public string RenderRazorViewToString(string viewName, object model)
{
...
Swift equivalent for MIN and MAX macros
... accept any parameter type that conforms to Comparable protocol, may it be String, Character or one of your custom class or struct.
Thereby, the following Playground sample code works perfectly:
class Route: Comparable, CustomStringConvertible {
let distance: Int
var description: String {...
How can I get the list of a columns in a table for a SQLite database?
...(3.6, I believe). I am looking for code that does this with a SQL query. Extra bonus points for metadata related to the columns (e.g. length, data type, etc...)
...
How to check whether a variable is a class or not?
...ss objects provide these attributes:
__doc__ documentation string
__module__ name of module in which this class was defined"""
return isinstance(object, (type, types.ClassType))
share
...
How do I trap ctrl-c (SIGINT) in a C# console app
...ss event is used for this. This is how it's used:
public static void Main(string[] args)
{
Console.CancelKeyPress += delegate {
// call methods to clean up
};
while (true) {}
}
When the user presses Ctrl + C the code in the delegate is run and the program exits. This allows y...
Python argparse: default value or specified value
...
How to do this with strings? I have a dilemma with differentiation of "" (empty string as default) and "" (empty string as entered by user). In the code for now I'm using the default and since I need to do some ops, I have something like this se...
How to use HTML Agility pack
... containing the html
htmlDoc.Load(filePath);
// Use: htmlDoc.LoadHtml(xmlString); to load from a string (was htmlDoc.LoadXML(xmlString)
// ParseErrors is an ArrayList containing any errors from the Load statement
if (htmlDoc.ParseErrors != null && htmlDoc.ParseErrors.Count() > 0)
{
...
str performance in python
...ed that the
str method to convert an object (in my case an integer) to a string is almost an order of magnitude slower than using string formatting.
...
List of foreign keys and the tables they reference
...
How to include schema (OWNER) in this statement (as string f.e. SYSTEM)?
– Adam Mrozek
May 19 at 12:11
...