ReferenceError

The ReferenceError object represents an error when a variable that doesn’t exist (or hasn’t yet been initialized) in the current scope is referenced.

ReferenceError is a serializable object, so it can be cloned with structuredClone() or copied between Workers using postMessage().

Also inherits instance properties from its parent Error.

These properties are defined on ReferenceError.prototype and shared by all ReferenceError instances.

ReferenceError.prototype.constructor The constructor function that created the instance object. For ReferenceError instances, the initial value is the ReferenceError constructor. ReferenceError.prototype.name Represents the name for the type of error. For ReferenceError.prototype.name, the initial value is “ReferenceError”.