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What's the difference between dynamic (C# 4) and var?
...g[] args)
{
Junk a = new Junk(); //NOTE: Compiler converted var to Junk
object b = new Junk(); //NOTE: Compiler converted dynamic to object
a.Hello(); //Already Junk so just call the method.
//NOTE: Runtime binding (late...
Hidden Features of C++? [closed]
...e type (i.e. no defaulted arguments) function1 and function2 are implictly converted to function pointers, and the result is implicitly converted back.
– MSalters
Nov 12 '10 at 15:49
...
How to get all subsets of a set? (powerset)
... is 2 ** len(A), so that could clearly be seen in the for loop.
I need to convert the input (ideally a set) into a list because by a set is a data structure of unique unordered elements, and the order will be crucial to generate the subsets.
selector is key in this algorithm. Note that selector ha...
What is the “right” JSON date format?
...is a non-standard hack/extension.
I would use a format that can be easily converted to a Date object in JavaScript, i.e. one that can be passed to new Date(...). The easiest and probably most portable format is the timestamp containing milliseconds since 1970.
...
How to call a Python function from Node.js
...nd child process 1.0.2. The data from python is a byte array and has to be converted. Just another quick example of making a http request in python.
node
const process = spawn("python", ["services/request.py", "https://www.google.com"])
return new Promise((resolve, reject) =>{
process.stdo...
'Static readonly' vs. 'const'
... preferred (any short is an object, but not all object are short). So y is converted to short, and that overload is used. Then Equals compares two short of identical value, and that gives true.
When y is not a constant, no implicit conversion from int to short exists. That's because in general an i...
What's the advantage of a Java enum versus a class with public static final fields?
...ly assign an enum element a certain value, and consequently the ability to convert an integer to an enum without a decent amount of effort (i.e. Convert integer value to matching Java Enum ).
...
What is the difference between IQueryable and IEnumerable?
...of the query has to be represented in data such that the LINQ provider can convert it into the appropriate form for the out-of-memory execution - whether that's an LDAP query, SQL or whatever.
More in:
LINQ : IEnumerable<T> and IQueryable<T>
C# 3.0 and LINQ.
"Returning IEnumerable<...
Use JNI instead of JNA to call native code?
...ill perform worse than with JNI. For example when passing arrays, JNA will convert these from Java to native at the beginning of each function call and back at the end of the function call. With JNI, you can control yourself when a native "view" of the array is generated, potentially only creating a...
What's the difference of $host and $http_host in Nginx
...ER (ref).
$http_HEADER
The value of the HTTP request header HEADER when converted to lowercase and with 'dashes' converted to 'underscores', e.g. $http_user_agent, $http_referer...;
Summarizing:
$http_host equals always the HTTP_HOST request header.
$host equals $http_host, lowercase and witho...