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Remove multiple whitespaces
I'm getting $row['message'] from a MySQL database and I need to remove all whitespace like \n \t and so on.
15 Answer...
Difference Between ViewResult() and ActionResult()
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ActionResult is an abstract class.
ViewResult derives from ActionResult. Other derived classes include JsonResult and PartialViewResult.
You declare it this way so you can take advantage of polymorphism and return different types in the same method.
e.g:
public ActionResult F...
return, return None, and no return at all?
...re. return None is never used if there are no other possible return values from the function.
In the following example, we return person's mother if the person given is a human. If it's not a human, we return None since the person doesn't have a mother (let's suppose it's not an animal or something...
How do I clone a generic List in Java?
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Not really a clone though, is it? From the API docs "There are no guarantees on the type, mutability, serializability, or thread-safety of the List returned". Euw, don't want one of those. toCollection may be a better choice.
– Tom Hawti...
How do I rename a repository on GitHub?
...ial bonus, we'll also be servicing all Git clone, fetch, and push requests from previous repository locations.
That means you don't even have to git remote set-url (change the url of your remote GitHub repo) on your local cloned repo!
Although Gabriel notes in the comments that the official GitHub ...
Is there a way to “autosign” commits in Git with a GPG key?
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Did you just copy and paste this from VonC's answer?
– Robbie Averill
May 15 '16 at 23:59
19
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How come a non-const reference cannot bind to a temporary object?
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From this Visual C++ blog article about rvalue references:
... C++ doesn't want you to accidentally
modify temporaries, but directly
calling a non-const member function on
a modifiable rvalue is explicit, so
it's ...
Why #define TRUE (1==1) in a C boolean macro instead of simply as 1?
... (0==0) and (1==0) predates C99.
there are still good reasons to stay away from C99 and work with C90.
If you're working in a mixed C and C++ project, and don't want C99, define the lower-case true, false and bool instead.
#ifndef __cplusplus
typedef int bool;
#define true (0==0)
#define false (!...
What is the difference between NULL, '\0' and 0?
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@Nasko: From the C standard (draft,n1124): 'An integer character constant has type int', thus '\0' is actually of type int in C, and thus sizeof('\0') is 4 in my architecture (linux,32bit)
– David Rodríguez - d...
C++ - passing references to std::shared_ptr or boost::shared_ptr
...nge and when it noticed the state of the object had changed, it removed it from the collection of objects in the previous state and moved it into the collection of objects in the new state. The remove operation destroyed the last shared pointer to the object. The member function had been called on a...