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Parameterize an SQL IN clause
...
Make sure you test on tags that have pipes in them.
– Joel Coehoorn
Dec 3 '08 at 17:16
18
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Code Golf - π day
...based on same formula as FORTRAN solution (slightly different results than test cases). Calculates X^2=R^2-Y^2 for every Y
[rdPr1-d0<p]sp1?dsMdd*sRd2%--
[dd*lRr-vddlMr-32rlpxRR42r2*lpxRRAP4*2+lN+sN2+dlM>y]
dsyx5klNlR/p
88 chars. Iterative solution. Matches test cases. For every X and Y chec...
How do you give iframe 100% height [duplicate]
...et the height of every parent to 100% as well (if that's what one wants).
Tested in:
Chrome 30, Firefox 24, Safari 6.0.5, Opera 16, IE 7, 8, 9 and 10
PS: I don't mean to be picky but the solution marked as correct doesn't work on Firefox 24 at the time of this writing, but worked on Chrome 30. Ha...
Is there a way to detect if an image is blurry?
...nted Simon's suggestion and this one in Mathematica, and tried it on a few test images:
The first test blurs the test images using a Gaussian filter with a varying kernel size, then calculates the FFT of the blurred image and takes the average of the 90% highest frequencies:
testFft[img_] := Tab...
Is there a version of JavaScript's String.indexOf() that allows for regular expressions?
...know if it still fails and under what circumstances.
UPDATE: Passes all tests found on in comments on this page, and my own. Of course, that doesn't mean it's bulletproof. Any feedback appreciated.
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How to disable margin-collapsing?
...at: left / right
position: absolute
display: inline-block / flex
You can test all of them here: http://jsfiddle.net/XB9wX/1/.
I should add that, as usual, Internet Explorer is the exception. More specifically, in IE 7 margins do not collapse when some kind of layout is specified for the parent el...
Is there a splice method for strings?
...pler alternative to both the Kumar/Cody and the Louis methods. On all the tests I ran, it performs as fast as the Louis method (see fiddle tests for benchmarks).
String.prototype.splice = function(startIndex,length,insertString){
return this.substring(0,startIndex) + insertString + this.sub...
Tar a directory, but don't store full absolute paths in the archive
...2 examples:
creation of a tarball without the full path:
full path /home/testuser/workspace/project/application.war and what we want is just project/application.war so:
tar -cvf output_filename.tar -C /home/testuser/workspace project
Note: there is a space between workspace and project; tar wi...
Why should we NOT use sys.setdefaultencoding(“utf-8”) in a py script?
...ng: utf-8 -*-
u = u'moçambique'
print u.encode("utf-8")
print u
chmod +x test.py
./test.py
moçambique
moçambique
./test.py > output.txt
Traceback (most recent call last):
File "./test.py", line 5, in <module>
print u
UnicodeEncodeError: 'ascii' codec can't encode character
u'\xe...
Everyauth vs Passport.js?
...mber of benefits, including smaller overall code size and well defined and testable interfaces.
For a basic illustration, compare the difference between running $ npm install passport and $ npm install everyauth. Passport lets you craft your application using only the dependencies you actually nee...