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Fastest way to duplicate an array in JavaScript - slice vs. 'for' loop
...or blink browsers slice() is the fastest method, concat() is a bit slower, and while loop is 2.4x slower.
for other browsers while loop is the fastest method, since those browsers don't have internal optimizations for slice and concat.
This remains true in Jul 2016.
Below are simple scripts that ...
High performance fuzzy string comparison in Python, use Levenshtein or difflib [closed]
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In case you're interested in a quick visual comparison of Levenshtein and Difflib similarity, I calculated both for ~2.3 million book titles:
import codecs, difflib, Levenshtein, distance
with codecs.open("titles.tsv","r","utf-8") as f:
title_list = f.read().split("\n")[:-1]
for row ...
Java equivalents of C# String.Format() and String.Join()
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More precisely: StringBuffer for jdk1.4 and below, StringBuilder for jdk1.5 and after, since the latter is not synchronized, hence a little faster.
– VonC
Oct 9 '08 at 15:39
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How to sort with lambda in Python
In Python, I am trying to sort by date with lambda. I can't understand my error message. The message is:
4 Answers
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Inserting a Link to a Webpage in an IPython Notebook
...e, certain special characters like "(" or ")" may brake the file/page path and lead to the link not working. I fixed it by replacing them with the code equivalents found here and then everything worked. theukwebdesigncompany.com/articles/entity-escape-characters.php
– Afflatus
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Get value from SimpleXMLElement Object
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Just noticed if you json_encode the xml object and then json_decode it you get a nested stdObject to deal with, quite handy for when you're being lazy & working with simple structures :D
– Louis
Sep 20 '13 at 6:59
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How do I make this file.sh executable via double click?
...pt that will execute in Terminal when you open it, name it with the “command” extension, e.g., file.command. By default, these are sent to Terminal, which will execute the file as a shell script.
You will also need to ensure the file is executable, e.g.:
chmod +x file.command
Without this, T...
How do I check out a specific version of a submodule using 'git submodule'?
....]
#
# modified: submodule (new commits)
Add the submodule directory and commit to store the new pointer.
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Lightweight SQL editor for Eclipse [closed]
...lipse SQL Editor seems very lightweight. It only does syntax highlighting and provides an outline view. As of now the author is planning to eventually add code folding and completion, but those two features are still on the todo list.
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How to check if an object is an array?
...Array.isArray(obj)
(Supported by Chrome 5, Firefox 4.0, IE 9, Opera 10.5 and Safari 5)
For backward compatibility you can add the following
# only implement if no native implementation is available
if (typeof Array.isArray === 'undefined') {
Array.isArray = function(obj) {
return Object.pr...