#Class: WebSocketConnectionFailedError experimental

Beta

当与 WebSocket 服务器的连接失败时抛出的错误。

An error thrown when the connection with the WebSocket server has failed.

#Extends

• Error

#Properties

#cause?

optional cause?: unknown

Beta

#Inherited from

Error.cause

#errorCode

readonly errorCode: HttpStatusCode

Early Execution Beta

#Remarks

尝试与服务器建立连接时收到的错误代码。

The error code received when attempting to connect with the server.

#message

message: string

Beta

#Inherited from

Error.message

#name

name: string

Beta

#Inherited from

Error.name

#stack?

optional stack?: string

Beta

#Inherited from

Error.stack

#uri

readonly uri: string

Early Execution Beta

#Remarks

用于发起本次连接尝试但失败的 URI。

The URI provided to make this connection attempt that failed.

#stackTraceLimit

static stackTraceLimit: number

Beta

The Error.stackTraceLimit property specifies the number of stack frames collected by a stack trace (whether generated by new Error().stack or Error.captureStackTrace(obj)).

The default value is 10 but may be set to any valid JavaScript number. Changes will affect any stack trace captured after the value has been changed.

If set to a non-number value, or set to a negative number, stack traces will not capture any frames.

#Inherited from

Error.stackTraceLimit

#Methods

#captureStackTrace()

static captureStackTrace(targetObject, constructorOpt?): void

Beta

Creates a .stack property on targetObject, which when accessed returns a string representing the location in the code at which Error.captureStackTrace() was called.

const myObject = {};
Error.captureStackTrace(myObject);
myObject.stack;  // Similar to `new Error().stack`

The first line of the trace will be prefixed with ${myObject.name}: ${myObject.message}.

The optional constructorOpt argument accepts a function. If given, all frames above constructorOpt, including constructorOpt, will be omitted from the generated stack trace.

The constructorOpt argument is useful for hiding implementation details of error generation from the user. For instance:

function a() {
  b();
}

function b() {
  c();
}

function c() {
  // Create an error without stack trace to avoid calculating the stack trace twice.
  const { stackTraceLimit } = Error;
  Error.stackTraceLimit = 0;
  const error = new Error();
  Error.stackTraceLimit = stackTraceLimit;

  // Capture the stack trace above function b
  Error.captureStackTrace(error, b); // Neither function c, nor b is included in the stack trace
  throw error;
}

a();

#Parameters

#targetObject

object

#constructorOpt?

Function

#Returns

void

#Inherited from

Error.captureStackTrace

#prepareStackTrace()

static prepareStackTrace(err, stackTraces): any

Beta

#Parameters

#err

Error

#stackTraces

CallSite[]

#Returns

any

#See

https://v8.dev/docs/stack-trace-api#customizing-stack-traces

#Inherited from

Error.prepareStackTrace

#同领域相关

• HttpRequestLimitExceededError
• InternalHttpRequestError
• InternalWebSocketError
• WebSocketLimitExceededError
• WebSocketNotConnectedError
• HttpClient