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What's the difference between Ruby's dup and clone methods?
...asses may override these methods to provide different semantics. In Object itself, there are two key differences.
First, clone copies the singleton class, while dup does not.
o = Object.new
def o.foo
42
end
o.dup.foo # raises NoMethodError
o.clone.foo # returns 42
Second, clone preserves th...
Returning JSON from a PHP Script
...
While you're usually fine without it, you can and should set the Content-Type header:
<?php
$data = /** whatever you're serializing **/;
header('Content-Type: application/json');
echo json_encode($data);
If I'm not using a particular framework, I u...
Is it possible to disable the network in iOS Simulator?
... debug some inconsistent behaviour I am seeing in an application that gets its primary data from the internet. I don't see the issues in the simulator, just on the device, so I'd like to reproduce the network and connectivity environment in the simulator.
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Remove white space below image [duplicate]
...Firefox only my video thumbnails are displaying mysterious 2-3 pixels of white space between the bottom of my image and its border (see below).
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How do I remedy “The breakpoint will not currently be hit. No symbols have been loaded for this docu
A C# desktop application on the express edition worked, but then it didn't work 5 seconds later.
112 Answers
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Delete commits from a branch in Git
I would like to know how to delete a commit.
31 Answers
31
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How can Perl's print add a newline by default?
... In fact, all you have to do is use 5.012; or use 5.010; to get it if you're running those newer perls.
– Robert P
May 25 '10 at 0:06
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What is the Sign Off feature in Git for?
What's the point of the Sign Off feature in Git ?
4 Answers
4
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Getting root permissions on a file inside of vi? [closed]
Often while editing config files, I'll open one with vi and then when I go to save it realize that I didn't type
10 Answers...
Styling multi-line conditions in 'if' statements? [closed]
Sometimes I break long conditions in if s onto several lines. The most obvious way to do this is:
30 Answers
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