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Convert a list of objects to an array of one of the object's properties
...
For everyone who is stuck with .NET 2.0, like me, try the following way (applicable to the example in the OP):
ConfigItemList.ConvertAll<string>(delegate (ConfigItemType ci)
{
return ci.Name;
}).ToArray();
where ConfigI...
Can an input field have two labels?
...ach information to controls. Each LABEL element is associated with exactly one form control.
Thus, each form control can be referenced by multiple labels, but each label can only reference one control. So if it makes sense to have a second label for a control (and in the situation you describe, it...
How do you import classes in JSP?
....util.List in a JSP page. What do I need to do to use classes other than ones in java.lang ?
6 Answers
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What is the difference between concurrency, parallelism and asynchronous methods?
... they do have different definitions: Concurrent = Existing, happening, or done at the same time. Parallel = of or pertaining to the apparent or actual performance of more than one operation at a time, by the same or different devices. As you can see parallel does not necessarily mean concurrent but ...
Grep characters before and after match?
...bin/Link to iconic S -rwxrwxrwx 777 rick 1000 ri
The file in question is one continuous 25K line and it is hopeless to find what you are looking for using regular grep.
Notice the two different ways you can call cgrep that parallels grep method.
There is a "niftier" way of creating the function wh...
How to tell whether a point is to the right or left side of a line
...etween them. Now I want to have all points that are left from this line in one set and those that are right from this line in the other set.
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When should one use RxJava Observable and when simple Callback on Android?
...y you not only want to retrieve the userPhoto, but you have an Instagram-clone, and you want to retrieve 2 JSONs:
1. getUserDetails()
2. getUserPhotos()
You want to load these two JSONs in parallel, and when both are loaded, the page should be displayed.
The callback variant will become a bit more ...
What is a stream?
...an be accessed in sequential order. Typical operations on a stream:
read one byte. Next time you read, you'll get the next byte, and so on.
read several bytes from the stream into an array
seek (move your current position in the stream, so that next time you read you get bytes from the new positio...
What are bitwise shift (bit-shift) operators and how do they work?
... not undefined, though; the standard requires implementations to define it one way or another. However, left shifts of negative signed numbers is undefined behaviour (signed integer overflow). So unless you need arithmetic right shift, it's usually a good idea to do your bit-shifting with unsigned...
Deleting all pending tasks in celery / rabbitmq
...ery 3.0+: manage.py celery purge (celeryctl is now deprecated and will be gone in 3.1).
– Henrik Heimbuerger
Apr 19 '13 at 14:26
3
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