错误对象的补充
每当 Error
对象通过域路由时,都会向其中添加一些额外的字段。
error.domain
最先处理错误的域。error.domainEmitter
触发带有错误对象的'error'
事件的事件触发器。error.domainBound
绑定到域的回调函数,并且传入一个错误作为其第一个参数。error.domainThrown
布尔值,指示错误是被抛出、触发、还是传给绑定的回调函数。
Any time an Error
object is routed through a domain, a few extra fields
are added to it.
error.domain
The domain that first handled the error.error.domainEmitter
The event emitter that emitted an'error'
event with the error object.error.domainBound
The callback function which was bound to the domain, and passed an error as its first argument.error.domainThrown
A boolean indicating whether the error was thrown, emitted, or passed to a bound callback function.