大约有 40,000 项符合查询结果（耗时：0.0716秒） [XML]
How to get next/previous record in MySQL?
...
|
edited Jul 10 '12 at 10:53
Vimalnath
6,12222 gold badges2323 silver badges4444 bronze badges
...
How do I get the first n characters of a string without checking the size or going out of bounds?
...
Here's a neat solution:
String upToNCharacters = s.substring(0, Math.min(s.length(), n));
Opinion: while this solution is "neat", I think it is actually less readable than a solution that uses if / else in the obvious way. If the reader hasn't seen this trick, he/she has to think ...
How to split a comma-separated value to columns
...R(MAX)
)
AS
BEGIN
DECLARE @value NVARCHAR(MAX),
@pos INT = 0,
@len INT = 0
SET @string = CASE
WHEN RIGHT(@string, 1) != @delimiter
THEN @string + @delimiter
ELSE @string
END
WHILE CHARINDEX(@delimiter, @string, @p...
How to copy Java Collections list
...
|
edited Dec 30 '13 at 16:22
pickypg
20k44 gold badges6464 silver badges7979 bronze badges
a...
What are file descriptors, explained in simple terms?
...at file and store the information about that opened file. So if there are 100 files opened in your OS then there will be 100 entries in OS (somewhere in kernel). These entries are represented by integers like (...100, 101, 102....). This entry number is the file descriptor.
So it is just an integer ...
How do I pass the value (not the reference) of a JS variable to a function? [duplicate]
...the let or const keywords to create a block-scoped variable:
for (let i = 0; i < results.length; i++) {
let marker = results[i];
google.maps.event.addListener(marker, 'click', () => change_selection(i));
}
In older browsers, you need to create a separate scope that saves the variable ...
how to get the cookies from a php curl into a variable
...|
edited May 7 '15 at 13:50
answered May 21 '09 at 23:55
TM...
Count how many records are in a CSV Python?
...ters
839k212212 gold badges32193219 silver badges28102810 bronze badges
1
...
What are the best practices for catching and re-throwing exceptions?
...$e) {
throw new Exception("Could not perform copy operation.", 0, $e);
}
}
}
This case is similar to the above (and the example probably not the best one could come up with), but it illustrates the point of providing more context: if an exception is thrown, it tells us that...
How can I refresh a page with jQuery?
...
+50
Use location.reload():
$('#something').click(function() {
location.reload();
});
The reload() function takes an optional parame...