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URIError() constructor - JavaScript | MDN
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>
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.
The URIError()
constructor creates URIError
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 without new
. Both create a new URIError
instance.
Parameters
message
Optional-
Human-readable description of the error.
options
Optional-
An object that has the following properties:
cause
Optional-
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.
fileName
Optional Non-standard-
The name of the file containing the code that caused the exception.
lineNumber
Optional Non-standard-
The line number of the code that caused the exception.
Examples
>Catching an 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 an 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
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