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How can i tell if an object has a key value observer attached
...SMutableArray like this:
- (void)addObservedObject:(id)object {
if (![_observedObjects containsObject:object]) {
[_observedObjects addObject:object];
}
}
If you want to unobserve the objects you can do something like:
for (id object in _observedObjects) {
if ([object isKindOf...
Explode PHP string by new line
...mment to the first answer, the best practice is to use the PHP constant PHP_EOL which represents the current system's EOL (End Of Line).
$skuList = explode(PHP_EOL, $_POST['skuList']);
PHP provides a lot of other very useful constants that you can use to make your code system independent, see thi...
How to avoid passing parameters everywhere in play2?
...s composition or by using implicit parameters. In Java I suggest using the Http.Context.args map to store useful values and retrieve them from the templates without having to explicitly pass as templates parameters.
Using implicit parameters
Place the menus parameter at the end of your main.scala....
How do I remove code duplication between similar const and non-const member functions?
...r time: the template solution is the only way to avoid duplication and get compiler-checked const-correctness, so personally I would no longer use a const_cast in order to avoid duplicating code, I'd choose between putting the duped code into a function template or else leaving it duped.
...
How to use a class from one C# project with another C# project
...
In this case you have 3 options: 1) Combine the 2 projects 2) Make the class internal - and add P2 as "InternalsVisibleTo" attribute (more information here: msdn.microsoft.com/en-us/library/…). 3) If none of the above can be done - you will have to use reflec...
_csv.Error: field larger than field limit (131072)
...
The csv file might contain very huge fields, therefore increase the field_size_limit:
import sys
import csv
csv.field_size_limit(sys.maxsize)
sys.maxsize works for Python 2.x and 3.x. sys.maxint would only work with Python 2.x (SO: what-is-sys-maxint-in-python-3)
Update
As Geoff pointed out,...
“Debug certificate expired” error in Eclipse Android plugins
...dows I had to delete the debug.keystore and make some changes to get a new compile going. I created a new test project, and the new debug.keystore was generated.
– Tomas
Jun 8 '10 at 13:37
...
Replace only some groups with Regex
...attern = @"-(\d+)-";
var replaced = Regex.Replace(text, pattern, (_match) =>
{
Group group = _match.Groups[1];
string replace = "AA";
return String.Format("{0}{1}{2}", _match.Value.Substring(0, group.Index - _match.Index), replace, _match.Value...
What characters are allowed in DOM IDs? [duplicate]
...ype ID MUST match the Name production.
NameStartChar ::= ":" | [A-Z] | "_" | [a-z] | [#xC0-#xD6] |
[#xD8-#xF6] | [#xF8-#x2FF] |
[#x370-#x37D] | [#x37F-#x1FFF] |
[#x200C-#x200D] | [#x2070-#x218F] |
...
Unique BooleanField value in Django?
...rn it off).
class Character(models.Model):
name = models.CharField(max_length=255)
is_the_chosen_one = models.BooleanField()
def save(self, *args, **kwargs):
if self.is_the_chosen_one:
try:
temp = Character.objects.get(is_the_chosen_one=True)
...