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Move an array element from one array position to another
...splice(new_index, 0, arr.splice(old_index, 1)[0]);
return arr; // for testing
};
// returns [2, 1, 3]
console.log(array_move([1, 2, 3], 0, 1));
Note that the last return is simply for testing purposes: splice performs operations on the array in-place, so a return is not necessary. ...
Relative imports in Python 2.7
...as packages, that contain interdependent files, where I want to be able to test parts of them piecemeal. Let's call this lib.foo and say that it needs access to lib.fileA for functions f1 and f2, and lib.fileB for class Class3.
I have included a few print calls to help illustrate how this works. I...
Bash script - variable content as a command to run
...just need to do:
#!/bin/bash
count=$(cat last_queries.txt | wc -l)
$(perl test.pl test2 $count)
However, if you want to call your Perl command later, and that's why you want to assign it to a variable, then:
#!/bin/bash
count=$(cat last_queries.txt | wc -l)
var="perl test.pl test2 $count" # You ...
How do you use “git --bare init” repository?
...give bare repositories the extension .git. So you can do
git init --bare test_repo.git
For Git versions < 1.8 you would do
mkdir test_repo.git
cd test_repo.git
git --bare init
To answer your later questions, bare repositories (by definition) don't have a working tree attached to them, so y...
Serving gzipped CSS and JavaScript from Amazon CloudFront via S3
...load a gzip and non-gzip version of the css and js. Be careful naming and test in Safari. Because safari won't handle .css.gz or .js.gz files.
site.js and site.js.jgz and
site.css and site.gz.css (you'll need to set the content-encoding header to the correct MIME type to get these to serve ri...
Get list of passed arguments in Windows batch script (.bat)
...Label+xyz
exit /b
:MYlabel
echo func %0, %~0, %~f0
exit /b
Output
main test.bat, test.bat, C:\temp\test.bat
func :myLabel+xyz, :myLabel+xyz, C:\temp\test.bat
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Can I initialize a C# attribute with an array or other variable number of arguments?
...mpleAttribute(int[] foo)
{
}
}
[Sample(new int[]{1, 3, 5})]
class Test
{
}
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Import error: No module name urllib2
...
For a script working with Python 2 (tested versions 2.7.3 and 2.6.8) and Python 3 (3.2.3 and 3.3.2+) try:
#! /usr/bin/env python
try:
# For Python 3.0 and later
from urllib.request import urlopen
except ImportError:
# Fall back to Python 2's urlli...
Is there a best practice for generating html with javascript
..., instead of the normal :
var s="";
for (var i=0; i < 200; ++i) {s += "testing"; }
use a temporary array:
var s=[];
for (var i=0; i < 200; ++i) { s.push("testing"); }
s = s.join("");
Using arrays is much faster, especially in IE. I did some testing with strings a while ago with IE7, Oper...
Emulate a do-while loop in Python?
...p:
condition = True
while condition:
# loop body here
condition = test_loop_condition()
# end of loop
The key features of a do-while loop are that the loop body always executes at least once, and that the condition is evaluated at the bottom of the loop body. The control structure show h...