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How to write trycatch in R

... to the R world ;-) Here you go Setting up the code urls <- c( "http://stat.ethz.ch/R-manual/R-devel/library/base/html/connections.html", "http://en.wikipedia.org/wiki/Xz", "xxxxx" ) readUrl <- function(url) { out <- tryCatch( { # Just to highlight: i...
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How to list out all the subviews in a uiviewcontroller in iOS?

...t-in way to dump the view hierarchy is useful -- recursiveDescription, per http://developer.apple.com/library/ios/#technotes/tn2239/_index.html It outputs a more complete view hierarchy which you might find useful: > po [_myToolbar recursiveDescription] <UIToolbarButton: 0xd866040; frame = ...
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Converting any string into camel case

... Great code, and it ended up winning jsperf.com/js-camelcase/5 . Care to contribute a version that can handle (remove) non-alpha chars? camelize("Let's Do It!") === "let'SDoIt!" sad face. I'll try myself but fear I will just add another replace. ...
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Dynamically load a JavaScript file

... What can I do to get it working for cross-domain? (loading script from http://web.archive.org/web/20140905044059/http://www.howtocreate.co.uk/operaStu‌​ff/userjs/aagmfunctions.js) – user2284570 Sep 14 '14 at 2:28 ...
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The import javax.servlet can't be resolved [duplicate]

... You need to set the scope of the dependency to 'provided' in your POM. http://maven.apache.org/guides/introduction/introduction-to-dependency-mechanism.html#Dependency_Scope <dependency> <groupId>javax.servlet</groupId> <artifactId>servlet-api</artifactId> ...
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Does Java have a using statement?

... Since Java 7 it does: http://blogs.oracle.com/darcy/entry/project_coin_updated_arm_spec The syntax for the code in the question would be: try (Session session = new Session()) { // do stuff } Note that Session needs to implement AutoClosable...
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Embedding Python in an iPhone app

...p on github that fetches and builds python2.6.5 for iPhone and simulator. http://github.com/cobbal/python-for-iphone Work in progress Somewhat depressing update nearly 2 years later: (copied from README on github) This project never really got python running on the iPhone to my satisfaction...
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How many String objects will be created when using a plus sign?

...result = one + two + "34"; Console.Out.WriteLine(result); } then the compiler seems to emit the code using String.Concat as @Joachim answered (+1 to him btw). If you define them as constants, e.g.: const String one = "1"; const String two = "2"; const String result = one + two + "34"; or a...
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difference between variables inside and outside of __init__()

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Bash script and /bin/bash^M: bad interpreter: No such file or directory [duplicate]

... over to run on a Unix environment. Try running dos2unix on the script: http://dos2unix.sourceforge.net/ Or just rewrite the script in your Unix env using vi and test. Unix uses different line endings so can't read the file you created on Windows. Hence it is seeing ^M as an illegal character. ...