JavaScript Core Reference: TypeError

A TypeError is thrown when a value is a different type than what was expected.

Browser/User Agent Support

IE Mozilla Netscape Opera Safari
5.0+ 1.0+ 6.0+ no no

IE	Mozilla	Netscape	Opera	Safari
5.0+	1.0+	6.0+	no	no

Constructors

Constructor IE Mozilla Netscape Opera Safari
TypeError Constructor
Creates a new instance of TypeError.
5.0+ 1.0+ 6.0+ no no

Constructor	IE	Mozilla	Netscape	Opera	Safari
TypeError Constructor Creates a new instance of TypeError.	5.0+	1.0+	6.0+	no	no

Properties

Property IE Mozilla Netscape Opera Safari
message
An error message associated with the TypeError.
5.0+ 1.0+ 6.0+ no no

name
Specifies the type of exception.
5.0+ 1.0+ 6.0+ no no

Property	IE	Mozilla	Netscape	Opera	Safari
message An error message associated with the TypeError.	5.0+	1.0+	6.0+	no	no

name Specifies the type of exception.	5.0+	1.0+	6.0+	no	no

Remarks

A TypeError is most commonly thrown when you try to access a value that is unexpectedly null or undefined. A TypeError can also be thrown if you use the operator on a value that is not a constructor or if you pass too many arguments to a built-in function.

References

Error | Error.message | Error.name

Availability

JavaScript 1.5 | JScript 5.5 | ECMAScript v3

Constructor Detail

TypeError TypeError([String message])

Creates a new instance of TypeError.

String message Error message that provides information about the exception. (optional)

Property Detail

String message

An error message associated with the TypeError.

See Also: Error.message
Availability: JavaScript 1.5 | JScript 5.5 | ECMAScript v3

String name

Specifies the type of exception.

Availability: JavaScript 1.5 | JScript 5.5 | ECMAScript v3

TypeError : Error