StaticstackThe 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.
ReadonlycodeMachine-readable error code.
Optional ReadonlyrequestOriginal request, if available.
Optional ReadonlyresponseResponse, if available (for HTTP-level errors).
Optional ReadonlycauseUnderlying cause.
OptionalstackTrue if the error is a network/transport failure (not proxy-related).
True if the error is a proxy-related failure.
True if the error is a timeout.
True if the request was aborted by the caller.
True if the server returned a 4xx or 5xx status.
HTTP status code shorthand (null for non-HTTP errors).
True if the status is a 4xx client error.
True if the status is a 5xx server error.
StaticcaptureCreates 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();
OptionalconstructorOpt: FunctionStaticprepare
Thrown when the server returns a 4xx or 5xx status.
Param: response
The HTTP response that caused the error.
Param: request
The request that produced the response.