str[fixnum, fixnum] = new_str
str[range] = aString
str[regexp] = new_str
str[regexp, fixnum] = new_str
str[regexp, name] = new_str
str[other_str] = new_str
Element AssignmentâReplaces some or all of the content of str. The
portion of the string affected is determined using the same criteria as
String#[]. If the replacement string is not the same length as
the text it is replacing, the string will be adjusted accordingly. If the
regular expression or string is used as the index doesn't match a
position in the string, IndexError is raised. If the regular
expression form is used, the optional second Fixnum allows you
to specify which portion of the match to replace (effectively using the
MatchData indexing rules. The forms that take a
Fixnum will raise an IndexError if the value is
out of range; the Range form will raise a
RangeError, and the Regexp and
String will raise an IndexError on negative
match.
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