SyntaxError() constructor

The SyntaxError constructor creates a new error object that represents an error when trying to interpret syntactically invalid code.

Syntax

new SyntaxError()
new SyntaxError(message)
new SyntaxError(message, fileName)
new SyntaxError(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

Examples

Catching a SyntaxError

try {
  eval('hoo bar');
} catch (e) {
  console.error(e instanceof SyntaxError);
  console.error(e.message);
  console.error(e.name);
  console.error(e.fileName);
  console.error(e.lineNumber);
  console.error(e.columnNumber);
  console.error(e.stack);
}

Creating a SyntaxError

try {
  throw new SyntaxError('Hello', 'someFile.js', 10);
} catch (e) {
  console.error(e instanceof SyntaxError); // true
  console.error(e.message);                // Hello
  console.error(e.name);                   // SyntaxError
  console.error(e.fileName);               // someFile.js
  console.error(e.lineNumber);             // 10
  console.error(e.columnNumber);           // 0
  console.error(e.stack);                  // @debugger eval code:3:9
}

Specifications

Specification
ECMAScript Language Specification (ECMAScript)
# sec-nativeerror-constructors

Browser compatibility

Desktop Mobile
Chrome Edge Firefox Internet Explorer Opera Safari WebView Android Chrome Android Firefox for Android Opera Android Safari on IOS Samsung Internet
SyntaxError
1
12
1
5.5
5
1
1
18
4
10.1
1
1.0

See also

© 2005–2021 MDN contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/SyntaxError/SyntaxError