Constructs a new UnknownError.
The main error message.
The HTTP status code to return.
OptionalcauseAn application-unique, readable error code.
OptionalstackThe HTTP status code to associate with this error.
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.
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: FunctionStaticisChecks if an object is an instance of AbstractError, or one of its subclasses.
The object to check.
Only check for similar looking error codes. You're going to want to use this if you're dealing with a setup where multiple versions of js-utils are loaded.
true if the object is an AbstractError, false otherwise.
StaticisIndicates whether the argument provided is a built-in Error instance or not.
Staticprepare
Used when an unknown, non-
Error-like object was caught and converted into a realErrorinstance. Like when you catch athrow "boom", we will convert the caught"boom"into anUnknownError. To enrich anError-like object that was caught, use the InternalError.