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Reference - What does this error mean in PHP?
...luates to, and is much less cryptic.
– Fabrício Matté
Mar 31 '13 at 2:43
3
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How do I pipe a subprocess call to a text file?
...utput = p2.communicate()[0]
There's plenty of lovely, useful info on the python manual page.
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How can I maintain fragment state when added to the back stack?
...ul 30 '19 at 19:49
Gastón Saillén
7,72144 gold badges3030 silver badges4848 bronze badges
answered Sep 26 '13 at 8:00
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How do you rotate a two dimensional array?
...tipping” the matrix onto its right side. We want to write a function, in Python, that takes a matrix and rotates in once to the right. The function signature will be:
def rotate(matrix):
# Algorithm goes here.
The matrix will be defined using a two-dimensional array:
matrix = [
[0,1],
...
What is java interface equivalent in Ruby?
...erfectly, so you can't ensure your Object have only the Interface methods définitions.
– Joel AZEMAR
May 28 '15 at 14:52
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Calculate distance between two latitude-longitude points? (Haversine formula)
...h my jsPerf and see the results here.
Recently I needed to do the same in python, so here is a python implementation:
from math import cos, asin, sqrt, pi
def distance(lat1, lon1, lat2, lon2):
p = pi/180
a = 0.5 - cos((lat2-lat1)*p)/2 + cos(lat1*p) * cos(lat2*p) * (1-cos((lon2-lon1)*p))/2...
How do you sort a list in Jinja2?
...
Ok, thanks. I did end up sorting in Python before sending to template: <code>movie_list = sorted( movie_list, key = lambda movie:movie.rating, reverse = True )</code> Too bad, it might be nice to let the template decide on the sort order! ( could ...
How do I prompt for Yes/No/Cancel input in a Linux shell script?
...no need for a while true loop to retry if they give invalid input.
Also, Léa Gris demonstrated a way to make the request language agnostic in her answer. Adapting my first example to better serve multiple languages might look like this:
set -- $(locale LC_MESSAGES)
yesptrn="$1"; noptrn="$2"; yesw...
Expression Versus Statement
...ction can iclude unless the language only allows for limited lambdas, like Python's single-expression lambdas.
In an expression-based language, all you need is a single expression for a function since all control structures return a value (a lot of them return NIL). There's no need for a return st...
Why is using a wild card with a Java import statement bad?
...ports has never caused any actual difficulties.
– Rogério
Jul 18 '09 at 22:24
33
See javadude.co...