replaceAfter method
Replaces part of string after the first occurrence of given delimiter with the replacement
string.
If the string does not contain the delimiter, returns defaultValue
which defaults to the original string.
Implementation
String? replaceAfter(String delimiter, String replacement,
[String? defaultValue]) {
if (this == null) return null;
final index = this!.indexOf(delimiter);
return (index == -1)
? defaultValue!.isNullOrEmpty()
? this
: defaultValue
: this!.replaceRange(index + 1, this!.length, replacement);
}