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enum = Enumerator.new do |yielder| | |
n = 0 | |
loop do | |
yielder << n | |
n += 1 | |
end | |
end | |
# Take creates a new Array | |
enum.take(10) #=> [0,1,2,3,4,5,6,7,8,9] |
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require 'active_support/inflector' | |
require 'benchmark' | |
class James | |
end | |
class John | |
end | |
class Jimmy |
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begin | |
require 'bundler/inline' | |
rescue LoadError => e | |
$stderr.puts 'Bundler version 1.10 or later is required. Please update your Bundler' | |
raise e | |
end | |
gemfile(true) do | |
source 'https://rubygems.org' | |
gem 'rails', '5.1.0' # use correct rails version |
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// Consumes value, returns nothing (cannot be assigned) | |
fn eat_it(c: Cake) {} | |
// Consumes value, returns another **different** value | |
fn recycle(c: Cake) -> Cake {} | |
// Reads value. Nothing more. | |
fn look_at(c: &Cake) {} | |
// Changes the cake we pass into it. |
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fn main() { | |
println!("Hello, world!"); | |
} |
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(ns run-length-encoding) | |
;; Combinators | |
(defn matches [predicate] | |
(fn [input] | |
(if (not (empty? input)) | |
(let [[head & tail] input] | |
(if (predicate head) [head (apply str tail)]))))) | |
(defn mmap [func parser] |