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How to insert an item into an array at a specific index (JavaScript)?
...t is the splice function on the native array object.
arr.splice(index, 0, item); will insert item into arr at the specified index (deleting 0 items first, that is, it's just an insert).
In this example we will create an array and add an element to it into index 2:
var arr = [];
arr[0] = "Jan...
Enum type constraints in C# [duplicate]
... sure there is a method behind the madness, but I'd like to understand why it's not possible.
6 Answers
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Python subprocess/Popen with a modified environment
I believe that running an external command with a slightly modified environment is a very common case. That's how I tend to do it:
...
How to edit a JavaScript alert box title?
I'm generating a JavaScript alert with following code in C# .NET page:
11 Answers
11
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JavaScript inheritance: Object.create vs new
... question you have mentioned that Both examples seem to do the same thing, It's not true at all, because
Your first example
function SomeBaseClass(){...}
SomeBaseClass.prototype = {
doThis : function(){...},
doThat : function(){...}
}
function MyClass(){...}
MyClass.prototype = Object.crea...
Copy constructor for a class with unique_ptr
...
Since the unique_ptr can not be shared, you need to either deep-copy its content or convert the unique_ptr to a shared_ptr.
class A
{
std::unique_ptr< int > up_;
public:
A( int i ) : up_( new int( i ) ) {}
A( const A& a ) : up_( new int( *a.up_ ) ) {}
};
i...
What's the point of the X-Requested-With header?
...
A good reason is for security - this can prevent CSRF attacks because this header cannot be added to the AJAX request cross domain without the consent of the server via CORS.
Only the following headers are allowed cross domain:
Accept
Accept...
Tab space instead of multiple non-breaking spaces (“nbsp”)?
Is it possible to insert a tab character in HTML instead of having to type &nbsp; four times?
35 Answers
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Differences between cookies and sessions?
...t JSP & Servlets . I have some knowledge of HttpSession - I have used it in some of my sample projects.
9 Answers
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JavaScript Nested function
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Functions are another type of variable in JavaScript (with some nuances of course). Creating a function within another function changes the scope of the function in the same way it would change the scope of a variable. This is especially important for use with closures to reduce ...