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When would I use Task.Yield()?

...; } var dialogTask = showAsync(); await Task.Yield(); // now we're on the dialog's nested message loop started by dialog.ShowDialog MessageBox.Show("The dialog is visible, click OK to close"); dialog.Close(); await dialogTask; // we're back to the main message loo...
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“render :nothing => true” returns empty plaintext file?

... Since Rails 4, head is now preferred over render :nothing.1 head :ok, content_type: "text/html" # or (equivalent) head 200, content_type: "text/html" is preferred over render nothing: true, status: :ok, content_type: "text/html" # or (equiva...
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How to show Page Loading div until the page has finished loading?

...at; background-attachment: fixed; background-position: center; } Now we need to create our div with this class which cover entire page as an overlay whenever the page is getting loaded <div id="coverScreen" class="LockOn"> </div> Now we need to hide this cover screen whenev...
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Google Authenticator implementation in Python

...s), Parameters When it comes to parameters: secret is a secret value known to server (the above script) and client (Google Authenticator, by providing it as password within application), intervals_no is the number incremeneted after each generation of the token (this should be probably resolved...
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How to keep environment variables when using sudo

...r setting HTTP_PROXY the command wget works fine without sudo . However if I type sudo wget it says it can't bypass the proxy setting. ...
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google chrome extension :: console.log() from background page?

... var bkg = chrome.extension.getBackgroundPage(); bkg.console.log('foo'); Now if you want to do the same within content scripts you have to use Message Passing to achieve that. The reason, they both belong to different domains, which make sense. There are many examples in the Message Passing page f...
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Wildcards in jQuery selectors

... What if, I want to select the Even of those selected. for instance: I currently have .col-lg-4:even div:nth-child(1) if I wanted to do the same.... what would I write? "[class^=.col-lg-]:even"? (I don't seem to make it work) ...
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Ways to circumvent the same-origin policy

...is to use custom HTTP headers to allow both the browser and the server to know enough about each other to determine if the request or response should succeed or fail. For a simple request, one that uses either GET or POST with no custom headers and whose body is text/plain, the request is sent with...
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How do you check if a variable is an array in JavaScript? [duplicate]

...ork as variable instanceof Number always returns false. Update: instanceof now goes 2/3 the speed! So yet another update Object.prototype.toString.call(variable) === '[object Array]'; This guy is the slowest for trying to check for an Array. However, this is a one stop shop for any type you're l...
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Installing pip packages to $HOME folder

...to $HOME/Library/Python. This might change in a future release. But, for now, on 2.7 (and 3.2, if hg were supported on Python 3), the above locations will be $HOME/Library/Python/x.y/bin/hg and $HOME/Library/Python/x.y/lib/python/site-packages. ...