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rails--rails/actionview/test
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yuuji.yaginuma 1b86d90136 Enable Performance/UnfreezeString cop 
In Ruby 2.3 or later, `String#+@` is available and `+@` is faster than `dup`.

```ruby
# frozen_string_literal: true

require "bundler/inline"

gemfile(true) do
  source "https://rubygems.org"

  gem "benchmark-ips"
end

Benchmark.ips do |x|
  x.report('+@') { +"" }
  x.report('dup') { "".dup }
  x.compare!
end
```

```
$ ruby -v benchmark.rb
ruby 2.5.1p57 (2018-03-29 revision 63029) [x86_64-linux]
Warming up --------------------------------------
                  +@   282.289k i/100ms
                 dup   187.638k i/100ms
Calculating -------------------------------------
                  +@      6.775M (± 3.6%) i/s -     33.875M in   5.006253s
                 dup      3.320M (± 2.2%) i/s -     16.700M in   5.032125s

Comparison:
                  +@:  6775299.3 i/s
                 dup:  3320400.7 i/s - 2.04x  slower

```
2018-09-23 08:56:55 +09:00
..
actionpack Merge pull request #30647 from droptheplot/render-partials-string-locals 2018-04-27 19:17:36 -04:00
activerecord Enable Performance/UnfreezeString cop 2018-09-23 08:56:55 +09:00
fixtures Enable Performance/UnfreezeString cop 2018-09-23 08:56:55 +09:00
lib/controller Use frozen string literal in actionview/ 2017-07-24 11:53:43 +03:00
template Enable Performance/UnfreezeString cop 2018-09-23 08:56:55 +09:00
ujs Fix stoppable events in tests and docs. 2018-04-14 19:44:14 +03:00
abstract_unit.rb Include ActionDispatch::DrawOnce in ActiveSupport::TestCase 2017-09-27 08:51:37 +09:00
active_record_unit.rb Enable Layout/LeadingCommentSpace to not allow cosmetic changes in the future 2017-12-14 17:30:54 +09:00