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Extension method and dynamic object
...aren't supported by dynamic typing in the form of extension methods, i.e. called as if they were instance methods. However, this will work:
dynamic dList = list;
Console.WriteLine(Enumerable.First(dList));
Of course, that may or may not be useful. If you could give more information about why and ...
When to use next() and return next() in Node.js
... return next() is to ensure that the execution stops after triggering the callback.
If you don't do it, you risk triggering the callback a second time later, which usually has devastating results. Your code is fine as it is, but I would rewrite it as:
app.get('/users/:id?', function(req, res, next...
Is background-color:none valid CSS?
...nswered Jan 5 '12 at 8:42
James AllardiceJames Allardice
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Akka Kill vs. Stop vs. Poison Pill?
...fference between Akka Stop/Poison Pill vs. Kill ? The book offers just a small explaination "Kill is synchronous vs. Poison pill is asynchronous." But in what way? Does the calling actor thread lock during this time? Are the children actors notified during kill, post-stop envoked, etc? Example uses ...
Removing MySQL 5.7 Completely [closed]
I am trying to uninstall mysql from my ubuntu 12.04 completely. But not able to.
3 Answers
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How can I reliably determine the type of a variable that is declared using var at design time?
...pass which analyzes only the "top level" stuff in the source code. We skip all the method bodies. That allows us to quickly build up a database of information about what namespace, types and methods (and constructors, etc) are in the source code of the program. Analyzing every single line of code i...
Which browsers support ?
... first part works on browsers without support for <script async.. tags, allowing them to load async with a "hack" (although a pretty solid one), and also allows rendering the page without waiting for ga.js to be retrieved.
The second part only affects compatible browsers that understand the a...
How to print a date in a regular format?
...do with that?
Well, when you manipulate dates, keep using the date objects all long the way. They got thousand of useful methods and most of the Python API expect dates to be objects.
When you want to display them, just use str(). In Python, the good practice is to explicitly cast everything. So jus...
Is there a destructor for Java?
...re is no direct equivalent of a destructor.
There is an inherited method called finalize, but this is called entirely at the discretion of the garbage collector. So for classes that need to explicitly tidy up, the convention is to define a close method and use finalize only for sanity checking (i.e...
Has anyone actually implemented a Fibonacci-Heap efficiently?
... been bugs in that implementation, which were fixed by my acquaintance and all-around cool guy Aaron Windsor. Unfortunately, most of the versions of that file that I could find online (and the one in Ubuntu's libboost-dev package) still had the bugs; I had to pull a clean version from the Subversio...