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What is the difference between `new Object()` and object literal notation?
...rly recognizable as to what is happening, so using new Object(), you are really just typing more and (in theory, if not optimized out by the JavaScript engine) doing an unnecessary function call.
These
person = new Object() /*You should put a semicolon here too.
It's not required, but it is goo...
Check if list contains any of another list
...ould be to project parameters to source and then use Intersect which internally uses a HashSet<T> so instead of O(n^2) for the first approach (the equivalent of two nested loops) you can do the check in O(n) :
bool hasMatch = parameters.Select(x => x.source)
.Inte...
“int main (vooid)”? How does that work?
I recently had to type in a small C test program and, in the process, I made a spelling mistake in the main function by accidentally using vooid instead of void .
...
error: writable atomic property cannot pair a synthesized setter/getter with a user defined setter/g
...o supply more information on this question:
You can supply the @property call with your own method by writing
@property(setter = MySetterMethod:, getter = MyGetterMethod)
Notice the colon for the supplied setter method.
Reference Apple documentation
EDIT:
I'm not quite sure how the new cha...
How to sort a dataFrame in python pandas by two or more columns?
...ign result of the sort method to a variable or add inplace=True to method call.
that is, if you want to reuse df1 as a sorted DataFrame:
df1 = df1.sort(['a', 'b'], ascending=[True, False])
or
df1.sort(['a', 'b'], ascending=[True, False], inplace=True)
...
ViewController respondsToSelector: message sent to deallocated instance (CRASH)
... hate putting out questions about my debugging and crashes. Because I usually handle them myself, but I just cannot get my way around this, even after viewing multiple questions already .
...
Calculating sum of repeated elements in AngularJS ng-repeat
...to this is that it iterates over the collection twice. this is fine for small collections, but what if the collection is rather large? it seems like in ng-repeat there should be a way to have a running sum on a given object field.
– icfantv
Aug 6 '14 at 16:14...
What is the shortcut to Auto import all in Android Studio?
... and make the following changes:
change Insert imports on paste value to All
markAdd unambigious imports on the fly option as checked
On a Mac, do the same thing in Android Studio -> Preferences
After this, all unambiguous imports will be added automatically.
...
When to use lambda, when to use Proc.new?
...xpect:
def whowouldwin
mylambda = lambda {return "Freddy"}
mylambda.call
# mylambda gets called and returns "Freddy", and execution
# continues on the next line
return "Jason"
end
whowouldwin
#=> "Jason"
Now here's a Proc.new-created proc's return doing the same thing. You're a...
How do you bind an Enum to a DropDownList control in ASP.NET?
...ic class Enumeration
{
public static IDictionary<int, string> GetAll<TEnum>() where TEnum: struct
{
var enumerationType = typeof (TEnum);
if (!enumerationType.IsEnum)
throw new ArgumentException("Enumeration type is expected.");
var dictionar...