angular2dart组件的属性和方法

Question

在查看组件的文档时，有许多方法，属性等等 那有什么好处？

例如，有MaterialInputComponent和属性errorMsg，我该如何使用它？

Answer 1

https://github.com/dart-lang/angular2_components/blob/master/lib/src/components/material_input/material_input.dart#L66

/// - `errorMsg` -- The error msg to be shown on the input if the max characters
///   are hit or the msg for an invalid number in the case of type = "number"