大约有 30,000 项符合查询结果（耗时：0.0254秒） [XML]
How to send a message to a particular client with socket.io
I'm starting with socket.io + node.js, I know how to send a message locally and to broadcast socket.broadcast.emit() function:- all the connected clients receive the same message.
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How to remove array element in mongodb?
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Is there call back with this?
– Oliver Dixon
Sep 1 '15 at 17:34
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Do I need to create indexes on foreign keys on Oracle?
...at PostgreSQL - at least at the time of this post - does not do it automatically.
– The Dembinski
Jan 6 '17 at 21:35
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How to update only one field using Entity Framework?
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You have basically two options:
go the EF way all the way, in that case, you would
load the object based on the userId provided - the entire object gets loaded
update the password field
save the object back using the context's .SaveCh...
How can I see the SQL that will be generated by a given ActiveRecord query in Ruby on Rails
... query has been issued, but I'm wondering if there is a method that can be called on and ActiveRecord Query.
11 Answers
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Disable/enable an input with jQuery?
...the href is still active). You have to also add a click event handler that calls preventDefault().
– Jeff Lowery
Sep 25 '14 at 18:50
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Delete multiple records using REST
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I typically will return a successful response because the end state is the same regardless. This simplifies logic on the client as well since they no longer have to handle that error state. As for the authorization case, I would j...
Is there a “not in” operator in JavaScript for checking object properties?
...t is hasOwnPropery you can use this:
if (!Object.prototype.hasOwnProperty.call(tutorTimes,id)) { ... }
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Sass combining parent using ampersand (&) with type selectors
...d to join your tag to .element instead of #id?
There's a function in Sass called selector-unify() that solves this. Using this with @at-root it is possible to target .element.
#id > .element {
@at-root #{selector-unify(&, div)} {
color: blue;
}
}
Will compile to:
#id >...
How to get a one-dimensional scalar array as a doctrine dql query result?
...since you only have on item per array, you can elegantly use
'current' as callback, instead of writing a closure.
$result = $em->createQuery("SELECT a.id FROM Auction a")->getScalarResult();
$ids = array_map('current', $result);
See Petr Sobotka's answer below for additional info regard...