URIError - JavaScript | MDN

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

js

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

js

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

Specification
ECMAScript® 2026 Language Specification
# sec-native-error-types-used-in-this-standard-urierror

Browser compatibility

See also

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