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Performance of foreach, array_map with lambda and array_map with static function
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}
return $result;
}
function useMapClosure($numbers) {
return array_map(function($number) {
return $number * 10;
}, $numbers);
}
function _tenTimes($number) {
return $number * 10;
}
function useMapNamed($numbers) {
return array_map('_tenTimes', $numbers);
}
foreach (array('F...
Build Eclipse Java Project from Command Line
...d startup.jar with the "equinox launcher"
https://wiki.eclipse.org/Equinox_Launcher
On Eclipse Mars (MacOX):
java -jar /Applications/Eclipse.app/Contents/Eclipse/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -noSplash -data "workspace" -application org.eclipse.jdt.apt.core.aptBu...
Global access to Rake DSL methods is deprecated
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Adding include Rake::DSL to the Rakefile before the applications load_tasks were called also worked for me.
So in the above user's case before the DemoApp::Application.load_tasks in the Rakefile.
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How to rename a single column in a data.frame?
...nswered May 10 '13 at 20:33
Side_0o_EffectSide_0o_Effect
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Changes in import statement python3
...a single function. In Python 2 you were permitted to be semi-lazy:
def sin_degrees(x):
from math import *
return sin(degrees(x))
Note that it already triggers a warning in Python 2:
a.py:1: SyntaxWarning: import * only allowed at module level
def sin_degrees(x):
In modern Python 2 co...
What is the preferred syntax for initializing a dict: curly brace literals {} or the dict() function
...cure at a second look. This only makes sense to me if you are working with __dict__, and the keywords are going to become attributes later, something like that.
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How do I specify a single test in a file with nosetests?
I have a file called test_web.py containing a class TestWeb and many methods named like test_something().
6 Answers
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get list from pandas dataframe column
...hon list. Alternatively you cast it with list(x).
import pandas as pd
data_dict = {'one': pd.Series([1, 2, 3], index=['a', 'b', 'c']),
'two': pd.Series([1, 2, 3, 4], index=['a', 'b', 'c', 'd'])}
df = pd.DataFrame(data_dict)
print(f"DataFrame:\n{df}\n")
print(f"column types:\n{df.dtyp...
What are five things you hate about your favorite language? [closed]
... and so hideously wrong I have never used it (see http://www.php.net/create_function).
3) A try/catch system which can only catch about 80% of errors that might occur.
4) Regex support just as lame as lambda support because it has to be written inside regular strings, making one of the most hard-t...
XAMPP, Apache - Error: Apache shutdown unexpectedly
...The solution ended up being (stackoverflow.com/questions/14548768/… setup_xampp.bat to refresh the paths]
– Timmah
Feb 7 '15 at 1:35
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