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What does (function($) {})(jQuery); mean?
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235
Firstly, a code block that looks like (function(){})() is merely a function that is executed i...
How to extract base URL from a string in JavaScript?
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20 Answers
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Downloading images with node.js [closed]
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edited Feb 12 '14 at 10:11
answered Oct 5 '12 at 18:01
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How to take the first N items from a generator or list in Python? [duplicate]
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526
Slicing a list
top5 = array[:5]
To slice a list, there's a simple syntax: array[start:stop:...
How to get rspec-2 to give the full trace associated with a test failure?
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244
You must run rspec with -b option to see full backtraces
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How to avoid warning when introducing NAs by coercion
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142
Use suppressWarnings():
suppressWarnings(as.numeric(c("1", "2", "X")))
[1] 1 2 NA
This supp...
Create Pandas DataFrame from a string
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A simple way to do this is to use StringIO.StringIO (python2) or io.StringIO (python3) and pass that to the pandas.read_csv function. E.g:
import sys
if sys.version_info[0] < 3:
from StringIO import StringIO
else:
from io import StringIO
import pandas as pd
TESTDATA = ...
how to get the one entry from hashmap without iterating
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answered Oct 2 '09 at 13:23
Per ÖstlundPer Östlund
1,15477 silver badges66 bronze badges
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Extract a number from a string (JavaScript)
I have a string in JavaScript like #box2 and I just want the 2 from it.
21 Answers
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Laravel migration: unique key is too long, even if specified
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