Debugging Dart in Dartium - Breakpoint Keyword? [duplicate]
Since Dart SDK 1.11.0 there is a debugger function in the new dart:developer library to trigger a breakpoint via code. You can pass an optional condition with the when parameter and provide and optional message.
import 'dart:developer';void main() { debugger(); print('Not reached when a debugger is attached till the execution is continued');}If compiled to JavaScript, the debugger keyword is used.