operator == abstract method
bool operator ==(Returns true if other is a String
with the same sequence of code units.
This method compares each individual code unit of the strings. It does not check for Unicode equivalence. For example, both the following strings represent the string 'Amélie', but due to their different encoding, are not equal:
'Am\xe9lie' == 'Ame\u{301}lie'; // false
The first string encodes 'é' as a single unicode code unit (also a single rune), whereas the second string encodes it as 'e' with the combining accent character '◌́'.
Source
bool operator ==(Object other);
© 2012 the Dart project authors
Licensed under the Creative Commons Attribution-ShareAlike License v4.0.
https://api.dartlang.org/stable/1.24.3/dart-core/String/operator_equals.html