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

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

URIError is a subclass of Error.

Constructor

URIError()

Creates a new URIError object.

Instance properties

Also inherits instance properties from its parent Error.

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

URIError.prototype.constructor

The constructor function that created the instance object. For URIError instances, the initial value is the URIError constructor.

URIError.prototype.name

Represents the name for the type of error. For URIError.prototype.name, the initial value is "URIError".

Instance methods

Inherits instance methods from its parent Error.

Examples

Catching a 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 a 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
}

Specifications

Browser compatibility

See also

• Error
• decodeURI()
• decodeURIComponent()
• encodeURI()
• encodeURIComponent()