Mozilla Developer Network
Summary
Represents an error when trying to interpret syntactically invalid code.
Description
A SyntaxError is thrown when the JavaScript engine encounters tokens or token order that does not conform to the syntax of the language when parsing code.
Syntax
new SyntaxError([message[, fileName[, lineNumber]]])
Parameters
- message
- Human-readable description of the error
- fileName
- The name of the file containing the code that caused the exception
- lineNumber
- The line number of the code that caused the exception
Properties
For properties available on SyntaxError instances, see Properties of SyntaxError instances.
- prototype
- Allows the addition of properties to an SyntaxError object.
Methods
For methods available on SyntaxError instances, see Methods of SyntaxError instances.
The global SyntaxError contains no methods of its own, however, it does inherit some methods through the prototype chain.
SyntaxError instances
All SyntaxError instances inherit from SyntaxError.prototype. You can use the prototype to add properties or methods to all instances.
Properties
constructor- Specifies the function that created an instance's prototype.
- name
- Error name.
SyntaxError should provide its own message property, in SpiderMonkey, it inherits Error.prototype.message.Methods
Although the SyntaxError prototype object does not contain any methods of its own, SyntaxError instances do inherit some methods through the prototype chain.