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What is “entropy and information gain”?
...form some kind of pruning (see the Wikipedia links provided above to learn more).
– Amro
Mar 23 '15 at 22:56
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How can I print literal curly-brace characters in python string and also use .format on it?
... @Imray: {0} refers to the first argument to .format(). You can print more than one value like {0} {1} {2} as long as you give the same number of arguments to .format(). See docs.python.org/library/string.html#format-examples for extensive examples.
– Greg Hewgill
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Is there a concurrent List in Java's JDK?
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@dfrankow But it can more more efficient if you're iterating much more than you're updating.
– b1nary.atr0phy
Jul 18 '15 at 18:13
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What to do Regular expression pattern doesn't match anywhere in string?
...he's scraping does a poor job escaping things like this, then he'll need a more sophisticated solution - but if they do it right (and if he has control over it, he should make sure it's right) then he's fine.
– Ross Snyder
Jul 8 '11 at 12:45
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What is the easiest way to parse an INI file in Java?
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Is this thing even working anymore? Downloaded 0.5.4 source and it didn't even build, and it wasn't a missing dependency.. not worth the time to bother with it more. Also ini4j has a lot of other crap in there we don't need, Windoze registry editing... ...
Given two directory trees, how can I find out which files differ by content?
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Can I set variables to undefined or pass undefined as an argument?
...ed object later on in the script it'll go wrong in a weird way that's much more difficult to track down than if JavaScript had just thrown an error straight away.)
This is often used to check for the existence of properties:
if (o.prop!==undefined) // or often as truthiness test, if (o.prop)
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How to view file diff in git before commit
...ke to revert some changes):
git difftool myfile.txt
To use git difftool more efficiently, install and use your favourite GUI tool such as Meld, DiffMerge or OpenDiff.
Note: You can also use . (instead of filename) to see current dir changes.
In order to check changes per each line, use: git bla...
Why does my application spend 24% of its life doing a null check?
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Threads don't solve this problem. Gives you more cores, you still have only one memory bus.
– Hans Passant
May 15 '13 at 14:58
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