HarmonyOS 对于js Crash，有没有全局异常处理机制？

//EntryAbility.ets 
onCreate(want: Want, launchParam: AbilityConstant.LaunchParam): void { 
  hilog.info(0x0000, 'testTag', '%{public}s', 'Ability onCreate'); 
  //创建异常发生时的回调 
  let observer: errorManager.ErrorObserver = { 
    //onUnhandledException回调，回调返回的对象为一个字符串 
    onUnhandledException(errorMsg) { 
      console.log('testTagonUnhandledException, errorMsg: ', errorMsg); 
    }, 
    //onException回调，回调返回的对象是一个包装好的对象，存在一些属性 
    onException(errorObj) { 
      console.log('testTagonException, name: ', errorObj.name); 
      console.log('testTagonException, message: ', errorObj.message); 
      if (typeof(errorObj.stack) === 'string') { 
        console.log('testTagonException, stack: ', errorObj.stack); 
      } 
    } 
    //以上两种回调唯一区别在于回调返回值是否封装为对象，无功能类的区别 
  }; 
  let observerId = -1; 
  //开启监听异常 
  observerId = errorManager.on('error', observer); 
} 
//Index.ets 
@Entry 
@Component 
struct Index { 
  @State message: string = 'Hello World'; 
 
  build() { 
    Row() { 
      Column() { 
        Text("触发异常") 
          .borderColor("black") 
          .fontSize(25) 
          .fontWeight(FontWeight.Bold) 
          .onClick(()=>{ 
            console.log("testTag1") 
            let list = ['0','1'] 
            //模拟数组越界异常 
            console.log(list[5].toString() + "testTag") 
            console.log("testTag2") 
          }) 
      } 
      .width('100%') 
    } 
    .height('100%') 
  } 
}
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