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Mercurial Eclipse Plugin
... Its disappointing that you need to sign up at java forge in order to download this plugin
– Chris Gow
Nov 26 '10 at 14:34
6
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Select Pandas rows based on list index
...is will not work if the indexes in your dataframe do not correspond to the order of the rows due to prior computations. In that case use:
df.index.isin([1,3])
... as suggested in other responses.
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Why does one often see “null != variable” instead of “variable != null” in C#?
In c#, is there any difference in the excecution speed for the order in which you state the condition?
9 Answers
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What is the 'pythonic' equivalent to the 'fold' function from functional programming?
...duce with non-associative operators is considered bad style.
Using higher-order functions is quite pythonic; it makes good use of Python's principle that everything is an object, including functions and classes. You are right that lambdas are frowned upon by some Pythonistas, but mostly because the...
Build fat static library (device + simulator) using Xcode and SDK 4+
...cript to let you auto-include Bundles (i.e. include PNG files, PLIST files etc from your library!) - see below (scroll to bottom)
now supports iPhone5 (using Apple's workaround to the bugs in lipo). NOTE: the install instructions have changed (I can probably simplify this by changing the script in f...
Why must wait() always be in synchronized block
We all know that in order to invoke Object.wait() , this call must be placed in synchronized block, otherwise an IllegalMonitorStateException is thrown. But what's the reason for making this restriction? I know that wait() releases the monitor, but why do we need to explicitly acquire the mon...
Batch files - number of command line arguments
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IF "%1"=="" GOTO HAVE_0
IF "%2"=="" GOTO HAVE_1
IF "%3"=="" GOTO HAVE_2
etc.
If you have more than 9 arguments then you are screwed with this approach though. There are various hacks for creating counters which you can find here, but be warned these are not for the faint hearted.
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Node.js check if file exists
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A easier way to do this synchronously.
if (fs.existsSync('/etc/file')) {
console.log('Found file');
}
The API doc says how existsSync work:
Test whether or not the given path exists by checking with the file system.
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Regex exactly n OR m times
...y the way stated in the question and it does work but there's a catch:
The order of the quantities matters. Consider this:
#[a-f0-9]{6}|#[a-f0-9]{3}
This will find all occurences of hex colour codes (they're either 3 or 6 digits long). But when I flip it around like this
#[a-f0-9]{3}|#[a-f0-9]{...
Cleaning up the iPhone simulator
...one app)
All the notes from others apply about being a good upgradable app etc. (I personally found this useful nonetheless b/c I have development mode switches that reload a database in a specific state I was trying to do some consistent robustness/error handling on)
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