[ruby-core:120604] [Ruby master Misc#21025] What's the default encoding of `String.new`?

[deivid via ruby-core <ruby-core@ml.ruby-lang.org>]

Issue #21025 has been updated by deivid (David Rodríguez).


Cool, thanks for the info, I'll create a PR to improve the documentation.

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Misc #21025: What's the default encoding of `String.new`?
https://bugs.ruby-lang.org/issues/21025#change-111432

* Author: deivid (David Rodríguez)
* Status: Open
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In the documentation (https://docs.ruby-lang.org/en/3.4/encodings_rdoc.html#label-String+Encoding) I see a good explanation of default string encodings:

![](Captura%20de%20pantalla%202025-01-10%20a%20las%2017.53.06.png)

However, it does not mention `String.new` without an argument, which is the one case where I see inconsistent behavior.

```
irb(main):001> "".encoding
=> #<Encoding:UTF-8>
irb(main):002> String.new("").encoding
=> #<Encoding:UTF-8>
irb(main):003> String.new(a="").encoding
=> #<Encoding:UTF-8>
irb(main):004> String.new.encoding
=> #<Encoding:BINARY (ASCII-8BIT)>
```

Should this be documented or changed?

---Files--------------------------------
Captura de pantalla 2025-01-10 a las 17.53.06.png (139 KB)


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