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How do I choose between Semaphore and SemaphoreSlim?

...uld be used when "wait times are expected to be very short". That would usually dovetail nicely with the idea that the slim version is more lightweight for most of the trade offs. share | improve th...
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Officially, what is typename for?

On occasion I've seen some really indecipherable error messages spit out by gcc when using templates... Specifically, I've had problems where seemingly correct declarations were causing very strange compile errors that magically went away by prefixing the typename keyword to the beginning of the...
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What does a Ajax call response like 'for (;;); { json data }' mean? [duplicate]

I found this kind of syntax being used on Facebook for Ajax calls. I'm confused on the for (;;); part in the beginning of response. What is it used for? ...
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How to get client's IP address using JavaScript?

...that can return JSON (along with jQuery to make things simpler). Below are all the free active IP lookup services I could find and the information they return. If you know of any more, then please add a comment and I'll update this answer. Cloudflare Try it: https://www.cloudflare.com/cdn-cgi/trace...
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how to show progress bar(circle) in an activity having a listview before loading the listview with d

I have a ListView in my second activity.OnItemClick of it I called a webservice and trying to fetch data. And after that I am moving to third activity which also have a ListView having description of previous activities ListView item. ...
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Simplest PHP example for retrieving user_timeline with Twitter API version 1.1

...erformRequest(); I've put these files on GitHub with credit to @lackovic10 and @rivers! I hope someone finds it useful; I know I did (I used it for bulk blocking in a loop). Also, for those on Windows who are having problems with SSL certificates, look at this post. This library uses cURL under ...
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Multiple github accounts on the same computer?

... All you need to do is configure your SSH setup with multiple SSH keypairs. This link is easy to follow (Thanks Eric): http://code.tutsplus.com/tutorials/quick-tip-how-to-work-with-github-and-multiple-accounts--net-22574 Gen...
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[SOLVED] Can't send payload > 23bytes(MTU setted to 128bytes) - #9 by ...

.... From the app side I have a text box that is sending the string to ESP32, all working except when I try to send strings over 23bytes. Ok, I read some topics here and tried to apply those solutions but no success yet. From my ESP32 firmware I wrote: BLEDevice::init("Monitor3"); BLEDevice::setMTU(128...
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X-Frame-Options Allow-From multiple domains

...olicy header, which along many other policies can white-list what URLs are allowed to host your page in a frame, using the frame-ancestors directive. frame-ancestors supports multiple domains and even wildcards, for example: Content-Security-Policy: frame-ancestors 'self' example.com *.example.net ...
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How to remove not null constraint in sql server using query

... answered Jul 30 '10 at 9:22 Michael PakhantsovMichael Pakhantsov 22.3k55 gold badges5353 silver badges5757 bronze badges ...