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What does bundle exec rake mean?
...l aliases.
See more on the man page.
Here's an example Gemfile:
source 'http://rubygems.org'
gem 'rails', '2.8.3'
Here, bundle exec would execute the script using rails version 2.8.3 and not some other version you may have installed system-wide.
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Is there a CSS selector for elements containing certain text?
...t for the CSS3 spec but it didn't make the cut.
:contains() CSS3 selector http://www.w3.org/TR/css3-selectors/#content-selectors
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Extract a part of the filepath (a directory) in Python
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Required tags not present when using Delphi XML Data Binding Wizard
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Does adding a duplicate value to a HashSet/HashMap replace the previous value
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It the case of HashSet, it does NOT replace it.
From the docs:
http://docs.oracle.com/javase/6/docs/api/java/util/HashSet.html#add(E)
"Adds the specified element to this set if it is not already present. More formally, adds the specified element e to this set if this set contains no ele...
runOnUiThread vs Looper.getMainLooper().post in Android
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What's the key difference between HTML 4 and HTML 5?
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Now W3c provides an official difference on their site:
http://www.w3.org/TR/html5-diff/
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Javascript - How to detect if document has loaded (IE 7/Firefox 3)
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No need for a library. jQuery used this script for a while, btw.
http://dean.edwards.name/weblog/2006/06/again/
// Dean Edwards/Matthias Miller/John Resig
function init() {
// quit if this function has already been called
if (arguments.callee.done) return;
// flag this function so...
What is the difference between ExecuteScalar, ExecuteReader and ExecuteNonQuery?
...y and should be assigned to a variable of required type.
Reference URL:
http://nareshkamuni.blogspot.in/2012/05/what-is-difference-between.html
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How to get the last element of an array in Ruby?
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