URIError

BaselineWidely available *

This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.

* Some parts of this feature may have varying levels of support.

TheURIError object represents an error when a global URI handling function was used in a wrong way.

URIError is aserializable object, so it can be cloned withstructuredClone() or copied betweenWorkers usingpostMessage().

URIError is a subclass ofError.

Constructor

URIError(): Creates a newURIError object.

Instance properties

Also inherits instance properties from its parentError.

These properties are defined onURIError.prototype and shared by allURIError instances.

URIError.prototype.constructor: The constructor function that created the instance object. ForURIError instances, the initial value is theURIError constructor.
URIError.prototype.name: Represents the name for the type of error. ForURIError.prototype.name, the initial value is"URIError".

Instance methods

Inherits instance methods from its parentError.

Examples

Catching an URIError

try {  decodeURIComponent("%");} catch (e) {  console.log(e instanceof URIError); // true  console.log(e.message); // "malformed URI sequence"  console.log(e.name); // "URIError"  console.log(e.stack); // Stack of the error}

Creating an URIError

try {  throw new URIError("Hello");} catch (e) {  console.log(e instanceof URIError); // true  console.log(e.message); // "Hello"  console.log(e.name); // "URIError"  console.log(e.stack); // Stack of the error}