Method: String#swapcase

Defined in:
string.c

#swapcase ⇒ String

Returns a copy of str with uppercase alphabetic characters converted to lowercase and lowercase characters converted to uppercase.

"Hello".swapcase          #=> "hELLO"
"cYbEr_PuNk11".swapcase   #=> "CyBeR_pUnK11"

Returns:



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# File 'string.c', line 2958

static VALUE
rb_str_swapcase(str)
VALUE str;