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Python: most idiomatic way to convert None to empty string?
... Uses the fact that python treats None, an empty list, an empty string, 0, etc as false. Also uses the fact that the or statement returns the first element that is true or the last element given to the or (or groups of ors). Also this uses lambda functions. I would give you +10 but obviously it ...
What is the best way to unit test Objective-C code?
...s is an old question, but if you prefer BDD-style testing (rspec, Jasmine, etc.) over xUnit-style testing (Test::Unit, JSUnit, JUnit, etc.), then you may consider checking out Cedar. Cedar brings BDD-style testing to Objective-C, now that the language supports closures.
We're happily using Cedar fo...
Linq: adding conditions to the where clause conditionally
...ublic int? Age {get; set;}
public string Division {get;set;}
etc
}
Then, in my data layer, something like this:
public IQueryable<User> SearchUsers(SearchParameters params)
{
var query = Context.Users;
if (params.Age.HasValue)
{
query = query.Where(u ...
Circular list iterator in Python
...n l:
print i
all of which print:
>>>
a
b
c
d
a
b
c
d
...etc.
of the three I'd be prone to the append(pop()) approach as a function
servers = ['a','b','c','d']
def rotate_servers(servers):
servers.append(servers.pop(0))
return servers
while 1:
servers = rotate_serv...
How do I show my global Git configuration?
... --show-origin
to see where that setting is defined (global, user, repo, etc...)
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How can I update window.location.hash without jumping the document?
...owsers as follows:
if (history.pushState) {
// IE10, Firefox, Chrome, etc.
window.history.pushState(null, null, '#' + id);
} else {
// IE9, IE8, etc
window.location.hash = '#!' + id;
}
As observed by Gavin Brock, to capture the id back you will have to treat the string (which in t...
Are delphi variables initialized with a value by default?
...lse, nil or whatever applies.
Global variables are always initialized to 0 etc as well;
Local reference-counted* variables are always initialized to nil or '';
Local non reference-counted* variables are uninitialized so you have to assign a value before you can use them.
I remember that Barry Kel...
How to compare two NSDates: Which is more recent?
... Lovely! Beats messing about with [date1 earlierDate:date2] etc... Thanks - for some reason I'd never thought to use compare: before.
– SomaMan
Apr 20 '12 at 10:29
1...
How to populate/instantiate a C# array with a single value?
...ated with the default value of the type (e.g. false for bool, 0 for int, etc.).
25 Answers
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How can I get screen resolution in java?
...e background, and such a monitor can be identified by size, screen colors, etc.):
// Test if each monitor will support my app's window
// Iterate through each monitor and see what size each is
GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
GraphicsDevice[] gs ...