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Completion handler for UINavigationController “pushViewController:animated”?
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See par's answer for another and more up to date solution
UINavigationController animations are run with CoreAnimation, so it would make sense to encapsulate the code within CATransaction and thus set a completion block.
Swift:
For swift I suggest cr...
Only read selected columns
...able() to skip columns. Here the data in the first 7 columns are "integer" and we set the remaining 6 columns to "NULL" indicating they should be skipped
> read.table("data.txt", colClasses = c(rep("integer", 7), rep("NULL", 6)),
+ header = TRUE)
Year Jan Feb Mar Apr May Jun
1 2009...
Task not serializable: java.io.NotSerializableException when calling function outside closure only o
...sk to fail. Now this doesn't mean that you can serialise an RDD with Spark and avoid NotSerializableException
Spark is a distributed computing engine and its main abstraction is a resilient distributed dataset (RDD), which can be viewed as a distributed collection. Basically, RDD's elements are par...
How to determine CPU and memory consumption from inside a process?
...om the Performance Data Helper library (PDH), which is a bit "unintuitive" and takes a lot of painful trial and error to get to work. (At least it took me quite a while, perhaps I've been only a bit stupid...)
Note: for clarity all error checking has been omitted from the following code. Do check t...
General guidelines to avoid memory leaks in C++ [closed]
...to use smart pointers where applicable.
Take a look at the Boost lib, TR1, and smart pointers.
Also smart pointers are now a part of C++ standard called C++11.
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Linux: copy and create destination dir if it does not exist
I want a command (or probably an option to cp) that creates the destination directory if it does not exist.
21 Answers
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How to create a GUID/UUID using iOS
I want to be able to create a GUID/UUID on the iPhone and iPad.
8 Answers
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Configure Flask dev server to be visible across the network
... To set to a specific ip app.run(host="192.168.1.7",port=5010) handy if your pc has a few ip's
– lxx
Jan 2 '15 at 3:29
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Ruby replace string with captured regex pattern
...ijwani Good comment, but also note that when using Ruby inline (on the command line with -e), it is more likely to see double quotes: printf "Punkinhead the name" | ruby -ne 'puts gsub /.*(the name)/, "Jonathans \\1"' because expression provided to -e is usually wrapped in single quotes.
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Rails raw SQL example
How can I convert this code to raw sql and use in rails? Because When I deploy this code in heroku,there is a request timeout error.I think this will be faster if I use raw sql.
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