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What's the difference between parenthesis $() and curly bracket ${} syntax in Makefile?
Is there any differences in invoking variables with syntax ${var} and $(var) ? For instance, in the way the variable will be expanded or anything?
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Have nginx access_log and error_log log to STDOUT and STDERR of master process
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Edit: it seems nginx now supports error_log stderr; as mentioned in Anon's answer.
You can send the logs to /dev/stdout. In nginx.conf:
daemon off;
error_log /dev/stdout info;
http {
access_log /dev/stdout;
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}
edit:...
Rails 4 - passing variable to partial
...follow
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edited Nov 26 '13 at 15:21
answered Apr 26 '13 at 17:55
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Why is a ConcurrentModificationException thrown and how to debug it
I am using a Collection (a HashMap used indirectly by the JPA, it so happens), but apparently randomly the code throws a ConcurrentModificationException . What is causing it and how do I fix this problem? By using some synchronization, perhaps?
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How to use SCNetworkReachability in Swift
...r was extended repeatedly due to changes in the Swift language, which made it a bit confusing. I have now rewritten it and removed everything which refers to Swift 1.x. The older code can
be found in the edit history if somebody needs it.)
This is how you would do it in Swift 2.0 (Xcode 7):
import...
Send an Array with an HTTP Get
How can i send an Array with a HTTP Get request?
2 Answers
2
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How do I use itertools.groupby()?
...ble to find an understandable explanation of how to actually use Python's itertools.groupby() function. What I'm trying to do is this:
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Advantages of std::for_each over for loop
... over for loop? To me, std::for_each only seems to hinder the readability of code. Why do then some coding standards recommend its use?
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How can you check which options vim was compiled with?
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You can see everything vim was compiled with by executing
:version
To query for an exact feature like python you can use the has() function with the feature you are looking for. The code below will return a 1 if it has the feature or 0 if it does not.
:echo has(...
Limit file format when using ?
...utton in the <input type="file"> element in HTML. I have a feeling it's impossible, but I'd like to know if there is a solution. I'd like to keep solely to HTML and JavaScript; no Flash please.
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