大约有 43,000 项符合查询结果（耗时：0.0243秒） [XML]
On select change, get data attribute value
...
You need to find the selected option:
$(this).find(':selected').data('id')
or
$(this).find(':selected').attr('data-id')
although the first method is preferred.
shar...
How to set the first option on a select box using jQuery?
I have two HTML select boxes. I need to reset one select box when I make a selection in another.
17 Answers
...
Using Java to find substring of a bigger string using Regular Expression
...ch would handle nested brackets. Additionally, I believe using the indexOf(char) would be faster than indexOf(String).
– Hosam Aly
Mar 2 '09 at 11:03
...
Simple way to transpose columns and rows in SQL?
...3, 5),
('Blue', 2, 2, 9, 1);
Union All, Aggregate and CASE Version:
select name,
sum(case when color = 'Red' then value else 0 end) Red,
sum(case when color = 'Green' then value else 0 end) Green,
sum(case when color = 'Blue' then value else 0 end) Blue
from
(
select color, Paul value...
Get selected value of a dropdown's item using jQuery
How can I get the selected value of a dropdown box using jQuery?
I tried using
30 Answers
...
jQuery get value of select onChange
I was under the impression that I could get the value of a select input by doing this $(this).val(); and applying the onchange parameter to the select field.
...
SET versus SELECT when assigning variables?
What are the differences between the SET and SELECT statements when assigning variables in T-SQL?
4 Answers
...
Set the selected index of a Dropdown using jQuery
...
First of all - that selector is pretty slow. It will scan every DOM element looking for the ids. It will be less of a performance hit if you can assign a class to the element.
$(".myselect")
To answer your question though, there are a few w...
You can't specify target table for update in FROM clause
...llow you to write queries like this:
UPDATE myTable
SET myTable.A =
(
SELECT B
FROM myTable
INNER JOIN ...
)
That is, if you're doing an UPDATE/INSERT/DELETE on a table, you can't reference that table in an inner query (you can however reference a field from that outer table...)
Th...
Insert a string at a specific index
...ice() method changes the content of a string by removing a range of
* characters and/or adding new characters.
*
* @this {String}
* @param {number} start Index at which to start changing the string.
* @param {number} delCount An integer indicating the number of old chars to ...