Categories: Operators

javascript Operators typeof

@March 15, 2008, 1:22 a.m.

typeof	Firefox/Netscape/NN 3 IE 3 ECMA 1

The typeof operator returns one of six string descriptions of the data type of a value. Those returned types are: boolean function number object string undefined
The object type includes arrays, but the operator provides no further information about the type of object or array of the value (see the instanceof operator).

Example

if (typeof someVar == "string") { ... }

javascript Operators try/catch