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Need to understand the usage of SemaphoreSlim

...at there won't be more than 10 workers doing this work at the same time. Calling WaitAsync on the semaphore produces a task that will be completed when that thread has been given "access" to that token. await-ing that task lets the program continue execution when it is "allowed" to do so. Having ...
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Why does cURL return error “(23) Failed writing body”?

... No. It might help with small documents but when it is too large to fit in the buffer cat uses the error will reappear.You could use -s to silence all error messages (and progress) if you don't need them. – Kaworu ...
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Android Studio suddenly cannot resolve symbols

...e imports and AS seems to be telling me it can't find android.support.v4 all of a sudden (offering me the option to remove the unused imports). ( android.support.v7 seems to be fine though). ...
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Get the client's IP address in socket.io

...it logs on git hub to figure this one out, but the following code does actually work for me now: var io = require('socket.io').listen(server); io.sockets.on('connection', function (socket) { var address = socket.handshake.address; console.log('New connection from ' + address.address + ':' + ad...
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var.replace is not a function

...nswered Jan 23 '11 at 18:06 gion_13gion_13 38.3k99 gold badges9090 silver badges101101 bronze badges ...
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Which letter of the English alphabet takes up most pixels?

...n 'Arial Black' on my MacBook in Chrome, lowercase m is the widest, by a small margin. – Earl Jenkins Feb 14 '12 at 22:25 15 ...
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How to disable/enable the sleep mode programmatically in iOS?

...back by overriding the viewWillDisappear: override func viewWillDisappear(_ animated: Bool) { UIApplication.shared.isIdleTimerDisabled = false } More about UIApplication Class. share | impr...
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Invoking JavaScript code in an iframe from the parent page

...oes not work for my gadget, here is my code document.getElementById('remote_iframe_0').contentWindow.my.create_element_gadg‌​et('verify_user');" remote_iframe_0 is created programmaticaly by a apache shindig server but window.parent.document.getElementById('remote_iframe_0').contentWindow.my.cr...
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rails 3.1.0 ActionView::Template::Error (application.css isn't precompiled)

...tion.rb ... config.assets.compile = true ... You can use this option to fallback to Sprockets when you are using precompiled assets but there are any missing precompiled files. If config.assets.compile option is set to false and there are missing precompiled files you will get an "AssetNoPrecompi...
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How can I change the image displayed in a UIImageView programmatically?

...n I look at the UIImageView doc, I can't see any hints about programmatically changing it. Do I have to fetch an UIImage object from that UIImageView ? ...