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Flatten an Array of Arrays in Swift
Is there a counterpart in Swift to flatten in Scala, Xtend, Groovy, Ruby and co?
14 Answers
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MySQL 'create schema' and 'create database' - Is there any difference
Taking a peak into the information_schema database and peaking at the metadata for one of my pet projects, I'm having a hard time understanding what (if any) differences there are between the create schema command and the create database command for MySQL.
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How to check if APK is signed or “debug build”?
As far as I know, in android "release build" is signed APK. How to check it from code or does Eclipse has some kinda of secret defines?
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Build an iOS app without owning a mac? [closed]
...ases
iPhone/iPad (iOS) app development
iPhone/iPad (iOS) app development and Publish to iTunes Store
1. iPhone/iPad (iOS) app development
So If you just want to develop iOS apps you don't want to pay anything,
You just need Mac + XCode IDE
Get Mac Mini or Mac Machine
Create Developer Accoun...
How to pass arguments into a Rake task with environment in Rails? [duplicate]
...ironment using the :needs option. For example:
desc "Testing environment and variables"
task :hello, :message, :needs => :environment do |t, args|
args.with_defaults(:message => "Thanks for logging on")
puts "Hello #{User.first.name}. #{args.message}"
end
Updated per @Peiniau's comment...
When to use in vs ref vs out
...use the parameter keyword out instead of ref . While I (I think) understand the difference between the ref and out keywords (that has been asked before ) and the best explanation seems to be that ref == in and out , what are some (hypothetical or code) examples where I should always use...
Selecting data from two different servers in SQL Server
...ta sources can be configured as linked servers, including Microsoft Access and Excel.
Linked servers offer the following advantages:
The ability to access data from outside of SQL Server.
The ability to issue distributed queries, updates, commands, and transactions on heterogeneous data sources ...
How to terminate a Python script
I am aware of the die() command in PHP which exits a script early.
10 Answers
10
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How to drive C#, C++ or Java compiler to compute 1+2+3+…+1000 at compile time?
...ing compiler features. This means that I am not allowed to write a program and execute it, but I should just write a program that could drive the compiler to compute this sum while compilation and print the result when compilation completes. As a hint, he told me that I may use generics and pre-proc...
What is a columnar database?
... simply storing the info in tables with one (or rather often two) columns (and adding the necessary layer to access the columnar data in an easy fashion).
How do they differ from relational databases?
They generally differ from traditional (row-oriented) databases with regards to ...
performance....