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When to use SELECT … FOR UPDATE?
...ocking them with SELECT FOR UPDATE.
However in some systems locking is a side effect of concurrency control, and you achieve the same results without specifying FOR UPDATE explicitly.
To solve this problem, Thread 1 should SELECT id FROM rooms FOR UPDATE, thereby preventing Thread 2 from dele...
What is the main difference between PATCH and PUT request?
...et of changes described in the
request entity be applied to the resource identified by the Request-
URI. The set of changes is represented in a format called a "patch
document" identified by a media type. If the Request-URI does not
point to an existing resource, the server MAY create a new...
What is the easiest way to disable/enable buttons and links (jQuery + Bootstrap)
...'input[type="submit"], input[type="button"], button').disable(false);
JSFiddle disabled button and input demo.
Otherwise you'd make use of jQuery's prop() method:
$('button').prop('disabled', true);
$('button').prop('disabled', false);
Anchor Tags
It's worth noting that disabled isn't a val...
Unnamed/anonymous namespaces vs. static functions
...when declaring objects in a
namespace scope, the unnamed-namespace
provides a superior alternative.
Static only applies to names of objects, functions, and anonymous unions, not to type declarations.
Edit:
The decision to deprecate this use of the static keyword (affect visibility of a va...
Analytics Google API Error 403: “User does not have any Google Analytics Account”
I'm creating an script, based on Google Analytics step-by-step guide from this page:
15 Answers
...
How to identify unused css definitions
Are there any good approaches to help identify unused css definitions in a project? A bunch of css files were pulled in and now I'm trying to clean things up a bit.
...
What's the difference between Task.Start/Wait and Async/Await?
...and then immediately return a task to the current caller. People get this idea in their heads that asynchrony can only be achieved through offloading work onto threads, but that's false. You can cook breakfast and read the paper while the toast is in the toaster without hiring a cook to watch the t...
Is there a cross-browser onload event when clicking the back button?
...ase read those articles (or my summary in a separate answer below) and consider whether you really need to do this and make your page load slower for your users.]
Can't believe it? Try this:
<body onunload=""><!-- This does the trick -->
<script type="text/javascript">
alert(...
Filtering fiddler to only capture requests for a certain domain
...s the thechnical way. I will not be able to open filers dialog when using fiddler programmatically. Edit the file and adding that is the way i've been looking for.
– m3nda
Feb 11 '15 at 12:55
...
Difference between Django's annotate and aggregate methods?
...grander scale than annotations. Annotations are inherently related to individual items in a queryset. If you run an Count annotation on a something like a many-to-many field, you'll get a separate count for each member of the queryset (as an added attribute). If you were to do the same with an aggre...