Movatterモバイル変換


[0]ホーム

URL:


  1. Web
  2. JavaScript
  3. Reference
  4. Standard built-in objects
  5. URIError
  6. URIError()

URIError() constructor

Baseline Widely available

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

TheURIError() constructor createsURIError objects.

Syntax

js
new URIError()new URIError(message)new URIError(message, options)new URIError(message, fileName)new URIError(message, fileName, lineNumber)URIError()URIError(message)URIError(message, options)URIError(message, fileName)URIError(message, fileName, lineNumber)

Note:URIError() can be called with or withoutnew. Both create a newURIError instance.

Parameters

messageOptional

Human-readable description of the error.

optionsOptional

An object that has the following properties:

causeOptional

A property indicating the specific cause of the error.When catching and re-throwing an error with a more-specific or useful error message, this property can be used to pass the original error.

fileNameOptionalNon-standard

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

lineNumberOptionalNon-standard

The line number of the code that caused the exception.

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-nativeerror-constructors

Browser compatibility

See also

Help improve MDN

Learn how to contribute

This page was last modified on byMDN contributors.


[8]ページ先頭

©2009-2026 Movatter.jp