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Can a C++ enum class have methods?
...nsider a class, too. Yet they can have member functions. And classes are really not mandatory for member functions. Using a designator like value or this, something like enum Size { Huge, Mega, Apocalypse; bool operator<(X rhs) const { return *this < rhs; } (here also allowing ;), it can make ...
How do you use https / SSL on localhost?
...t, etc.). Note that depending on configuration the site may still automatically start with the URL rather than the SSL URL. You can see the SSL URL - note the port number and replace it in your browser address bar, you should be able to get in and test.
From there you can right click on your projec...
Linq: GroupBy, Sum and Count
...oint me out to use First() and leave out SelectMany. The ResultLine is actually a ViewModel. The price will get formatted with currency sign. That's why I need it to be a string. But i could change quantity to int.. I'll see now if this may also help for my website. I'll let you know.
...
How do I get the current time zone of MySQL?
...ng the web server and the DB server it's talking to are set to [if not actually in] the same timezone isn't a huge leap.) But beware that (as with MySQL), you can set the timezone that PHP uses (date_default_timezone_set), which means it may report a different value than the OS is using. If you're i...
What is the difference between the template method and the strategy patterns?
... client invokes methods of the template's external interface the template calls its abstract methods (its internal interface) as required to invoke the algorithm.
class ConcreteAlgorithm : AbstractTemplate
{
void DoAlgorithm(int datum) {...}
}
class AbstractTemplate
{
void run(int datum) {...
Increment a database field by 1
...r perhaps you're looking for something like INSERT...MAX(logins)+1? Essentially you'd run a query much like the following - perhaps a bit more complex depending on your specific needs:
INSERT into mytable (logins)
SELECT max(logins) + 1
FROM mytable
...
How to limit depth for recursive file list?
...
Make use of find's options
There is actually no exec of /bin/ls needed;
Find has an option that does just that:
find . -maxdepth 2 -type d -ls
To see only the one level of subdirectories you are interested in, add -mindepth to the same level as -maxdepth:
find . -...
What is a StoryBoard ID and how can i use this?
...ould be from any ViewController:
//Maybe make a button that when clicked calls this method
- (IBAction)buttonPressed:(id)sender
{
MyCustomViewController *vc = [self.storyboard instantiateViewControllerWithIdentifier:@"MyViewController"];
[self presentViewController:vc animated:YES completi...
What is the difference between .map, .every, and .forEach?
I've always wondered what the difference between them were. They all seem to do the same thing...
4 Answers
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Exclude a sub-directory using find
...terating into the directory structure and using cpu cycles to iterate over all those directories/files. to prevent find from iterating over those directories/files (maybe there are millions of files there) then you need to use -prune (the -prune option is difficult to use however).
...