文件操作 - length.rb
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文件: /opt/puppetlabs/puppet/lib/ruby/vendor_ruby/puppet/functions/length.rb
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# frozen_string_literal: true # Returns the length of an Array, Hash, String, or Binary value. # # The returned value is a positive integer indicating the number # of elements in the container; counting (possibly multibyte) characters for a `String`, # bytes in a `Binary`, number of elements in an `Array`, and number of # key-value associations in a Hash. # # @example Using `length` # # ```puppet # "roses".length() # 5 # length("violets") # 7 # [10, 20].length # 2 # {a => 1, b => 3}.length # 2 # ``` # # @since 5.5.0 - also supporting Binary # Puppet::Functions.create_function(:length) do dispatch :collection_length do param 'Collection', :arg end dispatch :string_length do param 'String', :arg end dispatch :binary_length do param 'Binary', :arg end def collection_length(col) col.size end def string_length(s) s.length end def binary_length(bin) bin.length end end
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