benchmark/ips require 'benchmark/ips' require 'set' $ list = ('a'..'zzzz').to_a set = Set.new list $ Benchmark.ips do |x| x.report("set access") { set.include? "foo" } $ x.report("ary access") { list.include? "foo" } end G EM
Cacheͷ࣮ class Cache1 def initialize @cache = {} end def [] k; @cache[k]; end def []= k,v; @cache[k] = v; end end $ class Cache2 def initialize @cache = [] end def [] k; x, = @cache.assoc(k); x; end def []= k,v; @cache << [k, v]; end end ఆ ઢܗ
Tag Options def tag_option(key, value, escape) if value.is_a?(Array) value = escape ? safe_join(value, " ") : value.join(" ") else value = escape ? ERB::Util.h(value) : value end %(#{key}="#{value}") end
Tag Options def tag_option(key, value, escape) if value.is_a?(Array) value = escape ? safe_join(value, " ") : value.join(" ") else value = escape ? ERB::Util.h(value) : value end %(#{key}="#{value}") end
Extract Method def unwrapped_html_escape(s) # :nodoc: s = s.to_s if s.html_safe? s else s.gsub(HTML_ESCAPE_REGEXP, HTML_ESCAPE) end end $ def html_escape(s) unwrapped_html_escape(s).html_safe end
Update Callers def tag_option(key, value, escape) if value.is_a?(Array) value = escape ? safe_join(value, " ") : value.join(" ") else value = escape ? ERB::Util.unwrapped_html_escape(value) : value end %(#{key}="#{value}") end