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Recommended way of making React component/div draggable
... {this.props.children}
</div>
);
}
}
class Test extends React.PureComponent {
state = {
x: 100,
y: 200,
};
_move = (x, y) => this.setState({x, y});
// you can implement grid snapping logic or whatever here
/*
_move = (x, y)...
Is it possible to make anonymous inner classes in Java static?
...hin a static method.
This doesn't actually remove the reference. You can test this by trying to serialize the anonymous class and not making the enclosing class serializable.
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PHP: How to use array_filter() to filter array keys?
...), but it does offer the additional flexibility of performing an arbitrary test against the key, e.g. $allowed could contain regex patterns instead of plain strings.
You can also use ARRAY_FILTER_USE_BOTH to have both the value and the key passed to your filter function. Here's a contrived example ...
Debugging WebSocket in Google Chrome
...now have WebSocket message frame inspection feature. Here are the steps to test it quickly:
Navigate to the WebSocket Echo demo, hosted on the websocket.org site.
Turn on the Chrome Developer Tools.
Click Network, and to filter the traffic shown by the Dev Tools, click WebSockets.
In the Echo demo...
Can't install Ruby under Lion with RVM – GCC issues
...ions prior to 1.9.3-p125 may not always be fully compatible with clang, so test your software thoroughly if using the “edit 3” solution in a production environment.
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...
Post data to JsonP
...ery for the status of the operation.
I hope that someone finds it useful. Tested in >=IE8, Chrome, FireFox and Safari.
function JSONPPostForm(form, postUrl, queryStatusUrl, queryStatusSuccessFunc, queryStatusData)
{
var tmpDiv = $('<div style="display: none;"></div>');
form....
Is it possible to have multiple statements in a python lambda expression?
...an just using sorted(), so only measurements can tell which solution is fastest in your case. heapq.nsmallest() does however have a complexity of O(k * log(n) + n) I think, with n the length of the list and k the number of smallest items you wish to extract. O(n) to heapify the list and k times O(lo...
Restore the state of std::cout after manipulating it
...ntaining every little thing by yourself, instead of using a reviewed, well tested library ...
– jupp0r
Feb 5 '18 at 21:29
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getApplicationContext(), getBaseContext(), getApplication(), getParent()
... not be the application instance (which you obviously experienced with the test framework).
getParent() returns object of the activity if the current view is a child..In other words returns the activity object hosting the child view when called within the child.
...
When should I use Memcache instead of Memcached?
...While the memcached server is supposed to be very stable, it is not the fastest. You can use binary protocol instead of ASCII with the newer client.
Whenever you save complex data into memcached the client used to always do serialization of the value (which is slow), but now with memcached client yo...