Constructs a new CancelledRejectionError instance.
The promise that caused the error originally.
Optionalreason: anyThe rejection reason.
Optionalinfo: stringAn optional informative message specifying the circumstances in which the error was thrown.
Defaults to the string "Unhandled rejection in cancelled promise.".
OptionalcauseHolds a reference to the promise that was cancelled and then rejected.
OptionalstackStaticstackThe 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.
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: FunctionStaticisIndicates whether the argument provided is a built-in Error instance or not.
Staticprepare
Exception class that will be reported as an unhandled rejection in case a CancellablePromise rejects after being cancelled, or when the
oncancelledcallback throws or rejects.The value of the name property is the string
"CancelledRejectionError". The value of the cause property is the reason the promise rejected with.Because the original promise was cancelled, a wrapper promise will be passed to the unhandled rejection listener instead. The promise property holds a reference to the original promise.