On this page
toString abstract method
String toString(Returns a String-representation of this integer.
The returned string is parsable by parse. For any int i, it is guaranteed that i == int.parse(i.toString()).
Source
String toString();
  © 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/int/toString.html