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Android List Preferences: have summary as selected value?
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This also works with the AndroidX ListPreference.
I spent far too much time mucking with SharedPreferences listeners before I discovered this.
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How can I match multiple occurrences with a regex in JavaScript similar to PHP's preg_match_all()?
...up 2
[^]* # any character except "&" or "#"; any number of times
) # end group 2 - this will be the parameter's value
) # end non-capturing group
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How can I get the browser's scrollbar sizes?
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Correction: width will always === undefined the first time the function is called. On subsequent calls to the function width is already set, that check just prevents the calculations being run again needlessly.
– MartinAnsty
Aug 1 '13 at 10...
Check if OneToOneField is None in Django
... Thank you for this solution. Unfortunately, this doesn't work all the time. In case you want to work with select_related() now or in the future -- or maybe even to be sure you also handle other sorts of magic which may happen elsewhere -- you have to extend the test as follows: if hasattr(objec...
How to export data as CSV format from SQL Server using sqlcmd?
... let's not let evangelism turn into hysteria. SQLCMD is not going away any time soon.
– barbecue
Sep 4 '16 at 18:34
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Circle-Rectangle collision detection (intersection)
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@paniq: Well, both are constant-time. :-) But yes, this is more useful as a general solution, covering rectangles with any orientation, and in fact any simple polygon.
– ShreevatsaR
Jul 10 '11 at 10:31
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How do I reattach to a detached mosh session?
...hat we're trying to protect against), mosh uses a monotonic clock to track time on the client side, which doesn't work across reboots. This will NOT work, however, if your laptop just flat out crashes it won't work because mosh sequence numbers will be out of sync with the version that was checkpoin...
What is a typedef enum in Objective-C?
......xxxxl) in several places you must tag it with a unique name. The second time you use this set you just have to use the tag. But don't forget that this tag does not replace the enum word but just the set of enumerators. Then take care to use enum as usual. Like this:
// Here the first use of my e...
jQuery .live() vs .on() method for adding a click event after loading dynamic html
...n() {});
The event handler will be attached to the #parent object and anytime a click event bubbles up to it that originated on #child, it will fire your click handler. This is called delegated event handling (the event handling is delegated to a parent object).
It's done this way because you ca...
Does Java casting introduce overhead? Why?
...ther? Or the compiler just resolves everything and there is no cost at run time?
5 Answers
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