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How to extract numbers from a string and get an array of ints?
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answered Mar 2 '10 at 22:39
Sean OwenSean Owen
62.6k1919 gold badges130130 silver badges163163 bronze badges
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How do I upgrade my ruby 1.9.2-p0 to the latest patch level using rvm?
My current version of ruby is ruby 1.9.2p0 (2010-08-18 revision 29036) [x86_64-darwin10.5.0] but I want to update it to the latest patch level using rvm. How can I do this?
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How to convert 1 to true or 0 to false upon model fetch
... or false into a boolean/tinyint field in the database, which uses 1 or 0 .
4 Answers
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Vagrant's port forwarding not working [closed]
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80
I'll make this an actual answer instead of just more comments.
First thing: try curl 'http://lo...
MySQL IF NOT NULL, then display 1, else display 0
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Instead of COALESCE(a.addressid,0) AS addressexists, use CASE:
CASE WHEN a.addressid IS NOT NULL
THEN 1
ELSE 0
END AS addressexists
or the simpler:
(a.addressid IS NOT NULL) AS addressexists
This works because TRUE is displayed as 1 in ...
Is it possible to set a number to NaN or infinity?
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– David Heffernan
Mar 25 '11 at 22:30
2
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Can I set an opacity only to the background image of a div?
...ndex: 1;
}
.myDiv .bg {
position: absolute;
z-index: -1;
top: 0;
bottom: 0;
left: 0;
right: 0;
background: url(test.jpg) center center;
opacity: .4;
width: 100%;
height: 100%;
}
See test case on jsFiddle
:before and ::before pseudo-element
Another trick i...
What's the fastest way to loop through an array in JavaScript?
...yntactically obvious).
A standard for-loop with length caching
var i = 0, len = myArray.length;
while (i < len) {
// your code
i++
}
I would say, this is definitely a case where I applaud JavaScript engine developers. A runtime should be optimized for clarity, not cle...
iOS Image Orientation has Strange Behavior
...camera (or taken with somebody else's camera and MMS'd to me) are rotated 90 degrees. I wasn't sure why in the world this was happening (hence my question ) but I was able to come up with a cheap work around.
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Extract first item of each sublist
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201
Using list comprehension:
>>> lst = [['a','b','c'], [1,2,3], ['x','y','z']]
>>&...