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Find the IP address of the client in an SSH session
...e back through the tree to find the original ssh pid and get the variables from /proc/$PID/environ
– Andrej
Jun 1 '17 at 15:24
6
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How do I test a file upload in rails?
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From The Rspec Book, B13.0:
Rails’ provides an ActionController::TestUploadedFile class which can be used to represent an uploaded file in the params hash of a controller spec, like this:
describe UsersController, "POST c...
Why am I getting a NoClassDefFoundError in Java?
...ssarily true and will be misleading to many people! See the better answer from Jared below.
– Dave L.
Aug 31 '16 at 16:42
4
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How do I create delegates in Objective-C?
...ocols. You usually declare a formal protocol. The declaration, paraphrased from UIWebView.h, would look like this:
@protocol UIWebViewDelegate <NSObject>
@optional
- (void)webViewDidStartLoad:(UIWebView *)webView;
// ... other methods here
@end
This is analogous to an interface or abstract ...
When do I really need to use atomic instead of bool? [duplicate]
... Just for clarity's sake. @Vincent's comment may have originated from an understanding of the keyword volatile in Java. The volatile keyword in Java does control memory fences but has a very different behavior than the volatile keyword in C which does not. This question explains the diff...
How to POST JSON Data With PHP cURL?
...onse.
echo "<pre>$result</pre>";
Sidenote: You might benefit from using a third-party library instead of interfacing with the Shopify API directly yourself.
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Why is x86 ugly? Why is it considered inferior when compared to others? [closed]
...isters was still a significant weakness for 32-bit x86. x86-64's increase from 8 to 16 integer and vector registers is one of the biggest factors in 64bit code being faster than 32-bit (along with the more efficient register-call ABI), not the increased width of each register. A further increase f...
Any way to replace characters on Swift String?
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Or if you're looking for a more Swifty solution that doesn't utilize API from NSString, you could use this.
let aString = "Some search text"
let replaced = String(aString.map {
$0 == " " ? "+" : $0
})
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javascript regex - look behind alternative?
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EDIT: From ECMAScript 2018 onwards, lookbehind assertions (even unbounded) are supported natively.
In previous versions, you can do this:
^(?:(?!filename\.js$).)*\.js$
This does explicitly what the lookbehind expression is doin...
Is git's semi-secret empty tree object reliable, and why is there not a symbolic name for it?
...comments:
printf '' | git hash-object --stdin -t tree
Or, as seen here, from Colin Schimmelfing:
git hash-object -t tree --stdin < /dev/null
So I guess it is safer to define a variable with the result of that command as your empty sha1 tree (instead of relying of a "well known value").
Not...