replaceAll method
Replaces all substrings that match from with replace.
Returns a new string in which the non-overlapping substrings matching
from (the ones iterated by from.allMatches(thisString)) are replaced
by the literal string replace.
'resume'.replaceAll(new RegExp(r'e'), 'é'); // 'résumé'
Notice that the replace string is not interpreted. If the replacement
depends on the match (for example on a RegExp's capture groups), use
the replaceAllMapped method instead.
Implementation
String replaceAll(Pattern from, String replace);