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codepoints 

        # String.codepoints

(from ruby core)
---
    str.codepoints   -> an_array

---

Returns an array of the Integer ordinals of the characters in *str*. 
This is a shorthand for `str.each_codepoint.to_a`.

If a block is given, which is a deprecated form, works the same as
`each_codepoint`.

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