first version

Author: jugcoding

.gitignore

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+/dist
+/README.md.tmp
+/.ruby-version
 *.gem
 *.rbc
 /.config

.rubocop.yml

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+AllCops:
+  TargetRubyVersion: 2.7
+
+
+# Layout
+
+Layout/HashAlignment:
+  EnforcedHashRocketStyle: table
+  EnforcedColonStyle: table
+
+# Multi-line method chaining should be done with trailing dots.
+Layout/DotPosition:
+  EnforcedStyle: leading
+  SupportedStyles:
+    - leading
+    - trailing
+
+
+# Metrics
+
+Metrics/AbcSize:
+  # The ABC size is a calculated magnitude, so this number can be a Fixnum or
+  # a Float.
+  Max: 20
+
+Metrics/BlockLength:
+  Description: 'Avoid long blocks with many lines.'
+  Enabled: false
+
+Metrics/ClassLength:
+  Max: 200
+
+Metrics/LineLength:
+  Max: 100
+
+
+# Style
+
+Style/MutableConstant:
+  Enabled: false
+
+Style/BlockDelimiters:
+  EnforcedStyle: line_count_based
+  SupportedStyles:
+    # The `line_count_based` style enforces braces around single line blocks and
+    # do..end around multi-line blocks.
+    - line_count_based
+    # The `semantic` style enforces braces around functional blocks, where the
+    # primary purpose of the block is to return a value and do..end for
+    # procedural blocks, where the primary purpose of the block is its
+    # side-effects.
+    #
+    # This looks at the usage of a block's method to determine its type (e.g. is
+    # the result of a `map` assigned to a variable or passed to another
+    # method) but exceptions are permitted in the `ProceduralMethods`,
+    # `FunctionalMethods` and `IgnoredMethods` sections below.
+    - semantic
+    # The `braces_for_chaining` style enforces braces around single line blocks
+    # and do..end around multi-line blocks, except for multi-line blocks whose
+    # return value is being chained with another method (in which case braces
+    # are enforced).
+    - braces_for_chaining
+  ProceduralMethods:
+    # Methods that are known to be procedural in nature but look functional from
+    # their usage, e.g.
+    #
+    #   time = Benchmark.realtime do
+    #     foo.bar
+    #   end
+    #
+    # Here, the return value of the block is discarded but the return value of
+    # `Benchmark.realtime` is used.
+    - benchmark
+    - bm
+    - bmbm
+    - create
+    - each_with_object
+    - measure
+    - new
+    - realtime
+    - tap
+    - with_object
+  FunctionalMethods:
+    # Methods that are known to be functional in nature but look procedural from
+    # their usage, e.g.
+    #
+    #   let(:foo) { Foo.new }
+    #
+    # Here, the return value of `Foo.new` is used to define a `foo` helper but
+    # doesn't appear to be used from the return value of `let`.
+    - let
+    - let!
+    - subject
+    - watch
+  IgnoredMethods:
+    # Methods that can be either procedural or functional and cannot be
+    # categorised from their usage alone, e.g.
+    #
+    #   foo = lambda do |x|
+    #     puts "Hello, #{x}"
+    #   end
+    #
+    #   foo = lambda do |x|
+    #     x * 100
+    #   end
+    #
+    # Here, it is impossible to tell from the return value of `lambda` whether
+    # the inner block's return value is significant.
+    - lambda
+    - proc
+    - it
+
+Style/Documentation:
+  Description: 'Document classes and non-namespace modules.'
+  Enabled: false
+  Exclude:
+    - 'spec/**/*'
+    - 'test/**/*'
+
+Style/DoubleNegation:
+  Description: 'Avoid the use of double negation (`!!`).'
+  Enabled: false
+
+Style/MultilineBlockChain:
+  Description: 'Avoid multi-line chains of blocks.'
+  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#single-line-blocks'
+  Enabled: false

Gemfile

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+# frozen_string_literal: true
+
+source 'https://rubygems.org'
+
+## opal :
+gem 'opal'
+gem 'opal-activesupport'
+gem 'opal-browser'
+gem 'opal-jquery'
+
+# latest hyperstack
+git 'https://github.com/hyperstack-org/hyperstack', branch: 'edge', glob: 'ruby/*/*.gemspec' do
+  gem 'rails-hyperstack'
+end
+
+## build :
+gem 'sassc'
+gem 'uglifier'
+
+group :development do
+  gem 'foreman'
+  gem 'guard'
+  gem 'guard-livereload'
+  gem 'guard-rake'
+  gem 'rack-livereload'
+  gem 'rake'
+  gem 'sinatra'
+end