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C# difference between == and Equals()
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When == is used on an expression of type object, it'll resolve to System.Object.ReferenceEquals.
Equals is just a virtual method and behaves as such, so the overridden version will be used (which, for string type compares the conten...
Find the Smallest Integer Not in a List
...ue doesn't match the index - that's the smallest value not in the array. This results in at most 3N comparisons and only uses a few values worth of temporary space.
# Pass 1, move every value to the position of its value
for cursor in range(N):
target = array[cursor]
while target < N and...
Using @property versus getters and setters
Here is a pure Python-specific design question:
13 Answers
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Why does `True == False is False` evaluate to False? [duplicate]
...er unexpected behavior on an expression that works with == but not with is :
4 Answers
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Is it safe to delete a void pointer?
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It depends on "safe." It will usually work because information is stored along with the pointer about the allocation itself, so the deallocator can return it to the right place. In this sense it is "safe" as long as your allocator uses internal boundary tags. (Many do.)
However, as m...
How to unset a JavaScript variable?
... the answer to the question depends on how the global variable or property is defined.
(1) If it is created with var, it cannot be deleted.
For example:
var g_a = 1; //create with var, g_a is a variable
delete g_a; //return false
console.log(g_a); //g_a is still 1
(2) If it is created without var,...
How do you check if a variable is an array in JavaScript? [duplicate]
I would like to check whether a variable is either an array or a single value in JavaScript.
23 Answers
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What is code coverage and how do YOU measure it?
What is code coverage and how do YOU measure it?
9 Answers
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Why does calling a method in my derived class call the base class method?
Consider this code:
16 Answers
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Difference between `constexpr` and `const`
...objects as well as functions. The basic difference when applied to objects is this:
const declares an object as constant. This implies a guarantee that once initialized, the value of that object won't change, and the compiler can make use of this fact for optimizations. It also helps prevent the pr...