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Why does Math.Round(2.5) return 2 instead of 3?
... look at the nearest Java equivalent enum (RoundingMode) which offers even more options. (It doesn't just deal with midpoints.)
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Django: Get an object form the DB, or 'None' if nothing matches
...swer to this question can be found below by @kaapstorm, and is clearly the more suitable answer. Abusing filter() this way can lead to unexpected consequences, something which OP probably didn't realize (unless I'm missing something here)
– sleepycal
Mar 13 '14...
Avoid modal dismiss on enter keypress
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How to set size for local image using knitr for markdown?
... receives a lot of attention. As the existing answers are outdated, here a more up-to-date solution:
Resizing local images
As of knitr 1.12, there is the function include_graphics. From ?include_graphics (emphasis mine):
The major advantage of using this function is that it is portable in the sense...
Seeing escape characters when pressing the arrow keys in python shell
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What is stdClass in PHP?
...'number'] . PHP_EOL; //42
See Dynamic Properties in PHP and StdClass for more examples.
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How to grep Git commit diffs or contents for a certain word?
... all commits where "word" was added or removed in the file contents (to be more exact: where number of occurences of "word" changed), i.e. search the commit contents, use so called 'pickaxe' search with
$ git log -Sword
In modern git there is also
$ git log -Gword
to look for differences whose...
Why do we need fibers
...l one.
This doesn't have to do with fibers persay, but let me mention one more thing you can do with Enumerators: they allow you to apply higher-order Enumerable methods to other iterators other than each. Think about it: normally all the Enumerable methods, including map, select, include?, inject,...
How can I detect when the mouse leaves the window?
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