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How to get the index of an item in a list in a single step?
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EDIT: If you're only using a List<> and you only need the index, then List.FindIndex is indeed the best approach. I'll leave this answer here for those who need anything different (e.g. on top of any IEnumerable<>).
Use the overload of Select which takes...
How to escape JSON string?
... I cannot reproduce this method for deserializing an encoded and escaped unc path. My path "WatchedPath": "\\\\myserver\\output" becomes "\"\\\\\\\\myserver\\\\output\"" which is pretty unacceptable.
– slestak
Dec 29 '14 at 14:36
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How to check type of variable in Java?
...pe).
The examples you gave (int, array, double) these are all primitives, and there are no sub-types of them. Thus, if you declare a variable to be an int:
int x;
You can be sure it will only ever hold int values.
If you declared a variable to be a List, however, it is possible that the variab...
Why was “Avoid Enums Where You Only Need Ints” removed from Android's performance tips?
...was removed from the official developer documentation . (See Why doesn't Android use more enums? for the old section content)
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What does static_assert do, and what would you use it for?
...n example where static_assert(...) ('C++11') would solve the problem in hand elegantly?
8 Answers
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How to check if a word is an English word with Python?
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The same mention applies here too: a lot faster when converted to a set: set(words.words())
– Iulius Curt
Sep 30 '14 at 19:41
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Inheriting constructors
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If your compiler supports C++11 standard, there is a constructor inheritance using using (pun intended). For more see Wikipedia C++11 article. You write:
class A
{
public:
explicit A(int x) {}
};
class B: public A
{
using A::A;
};
This i...
Type Checking: typeof, GetType, or is?
...y_a_dog = new Dog();
Foo(probably_a_dog); // this calls Foo<Animal> and returns "Animal"
Foo<Animal>(probably_a_dog); // this is exactly the same as above
Foo<Dog>(probably_a_dog); // !!! This will not compile. The parameter expects a Dog, you cannot pass in an Animal.
Foo(defini...
Should a return statement be inside or outside a lock?
... that in some place in my code I have the return statement inside the lock and sometime outside. Which one is the best?
9 A...
Fast ceiling of an integer division in C / C++
Given integer values x and y , C and C++ both return as the quotient q = x/y the floor of the floating point equivalent. I'm interested in a method of returning the ceiling instead. For example, ceil(10/5)=2 and ceil(11/5)=3 .
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