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Wren

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Wren is a programming language created in 2013 by Bob Nystrom.

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Wren is a small, fast, class-based concurrent scripting language.


Example from the web:
System.print("Hello, world!") class Wren { flyTo(city) { System.print("Flying to %(city)") } } var adjectives = Fiber.new { ["small", "clean", "fast"].each {|word| Fiber.yield(word) } } while (!adjectives.isDone) System.print(adjectives.call())
Example from hello-world:
IO.print("Hello World")

Language features

Feature Supported Token Example
Strings "
"Hello world"
Print() Debugging IO.print
Comments
// A comment
Line Comments //
// A comment
Semantic Indentation X
c--.html · wren.html · bourne-shell.html

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