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Use block variable instead of global #20486

Merged
merged 1 commit into from
Jun 9, 2015
Merged

Use block variable instead of global #20486

merged 1 commit into from
Jun 9, 2015

Commits on Jun 9, 2015

  1. Use block variable instead of global 

    ```ruby
Benchmark.ips do |x|
  x.report("$&") {
    "foo".gsub(/f/) { $&.hex }
  }
  x.report("block var") {
    "foo".gsub(/f/) { |match| match.hex }
  }
end
```

```
Calculating -------------------------------------
                  $&    23.271k i/100ms
           block var    24.804k i/100ms
-------------------------------------------------
                  $&    321.981k (± 7.4%) i/s -      1.606M
           block var    324.949k (± 9.2%) i/s -      1.612M
```
    @repinel
    repinel committed Jun 9, 2015
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