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How to remove old Docker containers
...-run-if-empty docker rm
To give credit, where it is due, this example is from https://twitter.com/jpetazzo/status/347431091415703552.
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What is the size of ActionBar in pixels?
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From the de-compiled sources of Android 3.2's framework-res.apk, res/values/styles.xml contains:
<style name="Theme.Holo">
<!-- ... -->
<item name="actionBarSize">56.0dip</item>
<!-- .....
How to avoid .pyc files?
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From "What’s New in Python 2.6 - Interpreter Changes":
Python can now be prevented from
writing .pyc or .pyo files by
supplying the -B switch to the Python
interpreter, or by setting the
PYTHONDONTWRITEBYTECODE ...
JavaScript displaying a float to 2 decimal places
...d simple method I follow and it has never let me down:
var num = response_from_a_function_or_something();
var fixedNum = parseFloat(num).toFixed( 2 );
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What browsers support HTML5 WebSocket API?
...14.0 + 15.0
Firefox 7.0 + 8.0 + 9.0 + 10.0 - prefixed: MozWebSocket
IE 10 (from Windows 8 developer preview)
HyBi-17/RFC 6455
Chrome 16
Firefox 11
Opera 12.10 / Opera Mobile 12.1
Any browser with Flash can support WebSocket using the web-socket-js shim/polyfill.
See caniuse for the current st...
C++ Dynamic Shared Library on Linux
...ne all the required functions virtual. The plugin author would then derive from MyClass, override the virtuals and implement create_object and destroy_object. Your main application would not need to be changed in any way.
sh...
C++, copy set to vector
... emplace elements:
template <typename T>
std::vector<T> VectorFromSet(const std::set<T>& from)
{
std::vector<T> to;
to.reserve(from.size());
for (auto const& value : from)
to.emplace_back(value);
return to;
}
That way we will only invoke c...
What is the difference between Cloud, Grid and Cluster? [closed]
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Cluster differs from Cloud and Grid in that a cluster is a group of computers connected by a local area network (LAN), whereas cloud and grid are more wide scale and can be geographically distributed. Another way to put it is to say that a c...
AngularJS: How to run additional code after AngularJS has rendered a template?
I have an Angular template in the DOM. When my controller gets new data from a service, it updates the model in the $scope, and re-renders the template. All good so far.
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Configuring user and password with Git Bash
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From Git Bash I prefer to run the command:
git config --global credential.helper wincred
At that point running a command like git pull and entering your credentials one time should have it stored for future use. Git has a ...