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Integrating the ZXing library directly into my Android application

...is can be used for URLs too, but string // must include "http://" or "https://". public static final String TEXT = "TEXT_TYPE"; // An email type. Use Intent.putExtra(DATA, string) where string is the email address. public static final String EMAIL = "EMAIL_TYPE"; ...
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Capybara Ambiguity Resolution

...specifics because they've been discussed above already. More resources: https://thoughtbot.com/blog/write-reliable-asynchronous-integration-tests-with-capybara https://makandracards.com/makandra/20829-threads-and-processes-in-a-capybara-selenium-session ...
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Is double square brackets [[ ]] preferable over single square brackets [ ] in Bash?

... like = and =~. In Bashese: [ is a built-in command, and [[ is a keyword: https://askubuntu.com/questions/445749/whats-the-difference-between-shell-builtin-and-shell-keyword < [[ a < b ]]: lexicographical comparison [ a \< b ]: Same as above. \ required or else does redirection like for...
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Best introduction to C++ template metaprogramming? [closed]

...80201309775; and chapter 17, "Metaprograms" of C++ Templates: The Complete Guide by David Vandevoorder and Nicolai M. Josuttis, ISBN-13: 9780201734843. Todd Veldhuizen has an excellent tutorial here. A good resource for C++ programming in general is Modern C++ Design by Andrei Alexandrescu, I...
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Best way to create custom config options for my Rails app?

...nt Rails env. If you do not want to use a yaml file As Rails official guide says: You can configure your own code through the Rails configuration object with custom configuration under the config.x property. Example config.x.payment_processing.schedule = :daily config.x.payment_processin...
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Deprecated warning for Rails 4 has_many with order

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Strings as Primary Keys in SQL Database [closed]

...t is what you should use. I would also say there are definitely times for GUID or UUID fields in databases where an autoincrement field would not work. – Ryan Guill Feb 5 '09 at 20:16 ...
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How to rollback just one step using rake db:migrate

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AngularJS - difference between pristine/dirty and touched/untouched

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Acronyms in CamelCase [closed]

...efinitively not clear for all test cases. e.g. how do you read this word HTTPSSLRequest, HTTP + SSL, or HTTPS + SL (that doesn't mean anything but...), in that case follow camel case convention and go for httpSslRequest or httpsSlRequest, maybe it is no longer nice, but it is definitely more clear...