typeof Operator (JScript 5.6) 

Returns a string that identifies the data type of an expression.

typeof[(]expression[)] ;

Remarks

The expression argument is any expression for which type information is sought.

The typeof operator returns type information as a string. There are six possible values that typeof returns: "number," "string," "boolean," "object," "function," and "undefined."

The parentheses are optional in the typeof syntax.

Requirements

Version 1

See Also

Concepts

Operator Precedence (JScript 5.6)
Operator Summary (JScript 5.6)