End of Life Ruby 3.1 has reached end of life and gets no more fixes. Switch to Ruby 4.0 →
instance method
String#codepoints
str.codepoints → an_array
string.c
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static VALUE
rb_str_codepoints(VALUE str)
{
VALUE ary = WANTARRAY("codepoints", rb_str_strlen(str));
return rb_str_enumerate_codepoints(str, ary);
}
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.