即使对象已满，对象属性也返回未定义。打字稿

Question

我有ParametrosEscaner这样的课程：

export enum TiposPixel {
  BlancoNegro = 0,
  Grises,
  Color
};

export class ParametrosEscaner {
  tipoPixel: TiposPixel;
  resolucion: number;
  duplex: boolean;
  mostrarInterfaz: boolean;
};

我有一个组件可以使用Input输入此类的实例：

@Input() parametrosActuales: ParametrosEscaner = new ParametrosEscaner();

  constructor() { }

  ngOnInit() {
    debugger
    if(this.parametrosActuales){
      console.log(this.parametrosActuales);
      this.interfaz = this.parametrosActuales.mostrarInterfaz;
      this.dobleCara = this.parametrosActuales.duplex;
      this.tipoSeleccionado = this.valoresEnum()[this.parametrosActuales.tipoPixel];
      this.resolucionSeleccionada = this.parametrosActuales.resolucion;
    }
  }

问题是，即使我的控制台日志看起来像这样：

下面的所有属性都返回未定义的...我只是不明白为什么

编辑 发送对象的父组件如下所示：

ngOnInit() {
    this._informacionPreferencias.preferenciasActuales.subscribe(pref => {
      this.preferenciasCargaUsuario = pref;
      debugger
      if(this.preferenciasCargaUsuario.ParametrosEscaner){
        this.parametrosEscaner = this.preferenciasCargaUsuario.ParametrosEscaner;
      }
    })
  }

this.parametrosEscaner是孩子接收的对象

Answer 1

我认为您正在处理提到的[FunctionName("Function1")] public async Task Run([TimerTrigger("0 */1 * * * *")]TimerInfo myTimer, ILogger log) { log.LogInformation($"C# Timer trigger function executed at: {DateTime.Now}"); var url = "http://localhost:7071/api/Durable_Starter"; HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url); request.AutomaticDecompression = DecompressionMethods.GZip; using (HttpWebResponse response = (HttpWebResponse) await request.GetResponseAsync()) using (Stream stream = response.GetResponseStream()) using (StreamReader reader = new StreamReader(stream)) { var html = reader.ReadToEnd(); log.LogInformation(html); } } [FunctionName("Durable_Starter")] public async Task<IActionResult> Run([HttpTrigger(AuthorizationLevel.Anonymous, "get", "post")]HttpRequest req, [DurableClient] IDurableClient starter, ILogger log) { log.LogInformation("C# HTTP trigger function processed a request."); string instanceId = await starter.StartNewAsync("Durable_Orchestrator"); log.LogInformation($"Started orchestration with ID = '{instanceId}'."); var checkStatusResponse = starter.CreateCheckStatusResponse(req, instanceId); return checkStatusResponse; } [FunctionName("Durable_Orchestrator")] public async Task RunOrchestrator([OrchestrationTrigger] IDurableOrchestrationContext context, ILogger log) { var message = await context.CallActivityAsync<string>("HelloWorld", "Thiago"); log.LogInformation(message); } [FunctionName("HelloWorld")] public string HelloWorldActivity([ActivityTrigger] string name) { return $"Hello {name}!"; } （yurzui）这类情况。

尝试：

Alexey