URIError

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

Syntax

new URIError([message[, fileName[, lineNumber]]])

Parameters

message

Optional. Human-readable description of the error

fileName

Optional. The name of the file containing the code that caused the exception

lineNumber

Optional. The line number of the code that caused the exception

Description

A URIError is thrown when the global URI handling functions are passed a malformed URI.

Properties

URIError.prototype

Allows the addition of properties to a URIError object.

Methods

The global URIError contains no methods of its own, however, it does inherit some methods through the prototype chain.

URIError instances

Properties

Methods

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.fileName);            // "Scratchpad/1"
  console.log(e.lineNumber);          // 2
  console.log(e.columnNumber);        // 2
  console.log(e.stack);               // "@Scratchpad/2:2:3\n"
}

Creating an URIError

try {
  throw new URIError('Hello', 'someFile.js', 10);
} catch (e) {
  console.log(e instanceof URIError); // true
  console.log(e.message);             // "Hello"
  console.log(e.name);                // "URIError"
  console.log(e.fileName);            // "someFile.js"
  console.log(e.lineNumber);          // 10
  console.log(e.columnNumber);        // 0
  console.log(e.stack);               // "@Scratchpad/2:2:9\n"
}

Specifications

Specification	Status	Comment
ECMAScript 3rd Edition (ECMA-262) The definition of 'URIError' in that specification.	Standard	Initial definition
ECMAScript 5.1 (ECMA-262) The definition of 'URIError' in that specification.	Standard
ECMAScript 2015 (6th Edition, ECMA-262) The definition of 'URIError' in that specification.	Standard
ECMAScript 2017 Draft (ECMA-262) The definition of 'URIError' in that specification.	Draft

Browser compatibility

See also

• Error
• URIError.prototype
• decodeURI()
• decodeURIComponent()
• encodeURI()
• encodeURIComponent()