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What is the purpose of the vshost.exe file?
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Excerpt from MSDN How to: Disable the Hosting Process
Calls to certain APIs can be affected when the hosting process is enabled. In these cases, it is necessary to disable the hosting process to return the correct results.
To disable the hosting process
Open an executable project in Visual St...
HTML5 Pre-resize images before uploading
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Yes, use the File API, then you can process the images with the canvas element.
This Mozilla Hacks blog post walks you through most of the process. For reference here's the assembled source code from the blog post:
// from an input element
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JSON.stringify output to div in pretty print way
...gle-line of JSON because that's how the string is provided already (via an api or some function/page out of your control), you can reformat it like this:
HTML:
<pre id="json">{"some":"JSON string"}</pre>
JavaScript:
(function() {
var element = document.getElementById("js...
Persistence unit as RESOURCE_LOCAL or JTA?
...er to a unit of type RESOURCE_LOCAL
You must use the
EntityTransaction API to begin/commit around
every call to your EntityManger Calling
entityManagerFactory.createEntityManager() twice results in
two separate EntityManager instances and therefor
two separate PersistenceContexts/Caches....
In log4j, does checking isDebugEnabled before logging improve performance?
...ch optimisation but it's easier to read.
Do note though that most logging APIs offer formatting like this out of the box: slf4j for example provides the following:
logger.debug("My var is {}", myVar);
which is even easier to read.
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Convert UTC datetime string to local datetime
...zone(to_zone)
Edit Expanded example to show strptime usage
Edit 2 Fixed API usage to show better entry point method
Edit 3 Included auto-detect methods for timezones (Yarin)
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Calling C/C++ from Python?
...e of the more user-friendly libraries in Boost, for a simple function call API it is quite straightforward and provides boilerplate you'd have to write yourself. It's a bit more complicated if you want to expose an object-oriented API.
– jwfearn
Sep 28 '08 at ...
How to log out user from web site using BASIC authentication?
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You can do it entirely in JavaScript:
IE has (for a long time) standard API for clearing Basic Authentication cache:
document.execCommand("ClearAuthenticationCache")
Should return true when it works. Returns either false, undefined or blows up on other browsers.
New browsers (as of Dec 2012: ...
Why does AngularJS include an empty option in select?
...e configuration defined in the specification at http://docs.angularjs.org/api/ng.directive:select , I still get an empty option as the first child of select element.
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Django: Get list of model fields?
... not entirely sure. The underscore seems to indicate it's an internal API, would be cool if the Django guys promoted this up to an actually public method call on django.db.models.Model. I'll dig into it and see what I can find
– rossipedia
Jun 23 '10 at 23...