大约有 44,000 项符合查询结果（耗时：0.0781秒） [XML]
Check if element exists in jQuery [duplicate]
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CSS selectors are used therefore "#elementId" selects by element. "elementId" would actually select all emenets whose tags are named "elementId"
– Petr Gladkikh
Dec 13 '12 at 7:13
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Regular expression for exact match of a string
...tch" button and you will see why it matches. BTW remember '.' is a special char and good to escape it. (and good to think twice before down voting :D ).
– prageeth
Sep 29 '13 at 3:16
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phpunit mock method multiple calls with different arguments
... ->with($this->logicalOr(
$this->equalTo('select * from roles'),
$this->equalTo('select * from users')
))
->will($this->returnCallback(array($this, 'myCallback')));
var_dump($mock->Query("select * from us...
GROUP BY to combine/concat a column [duplicate]
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SELECT
[User], Activity,
STUFF(
(SELECT DISTINCT ',' + PageURL
FROM TableName
WHERE [User] = a.[User] AND Activity = a.Activity
FOR XML PATH (''))
, 1, 1, '') AS URL...
Definitive way to trigger keypress events with jQuery
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In case you need to take into account the current cursor and text selection...
This wasn't working for me for an AngularJS app on Chrome. As Nadia points out in the original comments, the character is never visible in the input field (at least, that was my experience). In addition, the pre...
In PHP, how do you change the key of an array element?
...y, you can change the key directly from the mysql statement:
instead of
"select ´id´ from ´tablename´..."
use something like:
"select ´id´ **as NEWNAME** from ´tablename´..."
share
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i...
How do I check whether a checkbox is checked in jQuery?
...sting code, you could therefore do this:
if(document.getElementById('isAgeSelected').checked) {
$("#txtAge").show();
} else {
$("#txtAge").hide();
}
However, there's a much prettier way to do this, using toggle:
$('#isAgeSelected').click(function() {
$("#txtAge").toggle(this.che...
Why is \r a newline for Vim?
From question How to replace a character for a newline in Vim? . You have to use \r when replacing text for a newline, like this
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MySQL/SQL: Group by date only on a Datetime column
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Cast the datetime to a date, then GROUP BY using this syntax:
SELECT SUM(foo), DATE(mydate) FROM a_table GROUP BY DATE(a_table.mydate);
Or you can GROUP BY the alias as @orlandu63 suggested:
SELECT SUM(foo), DATE(mydate) DateOnly FROM a_table GROUP BY DateOnly;
Though I don't think...
Effect of a Bitwise Operator on a Boolean in Java
...variables and operate on them bit by bit. In the case of integers, longs, chars this makes sense. These variables can contain the full range of values enforced by their size.
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