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What does android:layout_weight mean?

I don't understand how to use this attribute. Can anyone tell me more about it? 13 Answers ...
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What is the JSF resource library for and how should it be used?

The JSF <h:outputStylesheet> , <h:outputScript> and <h:graphicImage> components have a library attribute. What is this and how should this be used? There are a lot of examples on the web which use it as follows with the common content/file type css , js and img (or ima...
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Listing each branch and its last revision's date in Git

I need to delete old and unmaintained branches from our remote repository. I'm trying to find a way with which to list the remote branches by their last modified date, and I can't. ...
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How does the algorithm to color the song list in iTunes 11 work? [closed]

... nice view for the song list of an album, picking the colors for the fonts and background in function of album cover. Anyone figured out how the algorithm works? ...
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Difference between “andand && in Ruby?

What is the difference between the && and and operators in Ruby? 7 Answers ...
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Covariance, Invariance and Contravariance explained in plain English?

Today, I read some articles about Covariance, Contravariance (and Invariance) in Java. I read the English and German Wikipedia article, and some other blog posts and articles from IBM. ...
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Is there a difference between foreach and map?

...n a particular language, but is there a difference between a map operation and a foreach operation? Or are they simply different names for the same thing? ...
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jQuery deferreds and promises - .then() vs .done()

I've been reading about jQuery deferreds and promises and I can't see the difference between using .then() & .done() for successful callbacks. I know Eric Hynds mentions that .done() and .success() map to the same functionality but I'm guessing so does .then() as all the callbacks are al...
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Why is 1/1/1970 the “epoch time”?

...DC, but it was probably cheap to use whatever was most common at the time, and TVs were being mass-produced then... – Matt Howells Jul 7 '09 at 10:32 18 ...
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What is the advantage to using bloom filters?

I am reading up on bloom filters and they just seem silly. Anything you can accomplish with a bloom filter, you could accomplish in less space, more efficiently, using a single hash function rather than multiple, or that's what it seems. Why would you use a bloom filter and how is it useful? ...