0 out of 1 rated this helpful - Rate this topic

hasOwnProperty Method

Visual Studio 2005

Returns a Boolean value indicating whether an object has a property with the specified name.


function hasOwnProperty(proName : String) : Boolean

Arguments

proName: Required. String value of a property name.

Remarks

The hasOwnProperty method returns true if the object has a property of the specified name, false if it does not. This method does not check if the property exists in the object's prototype chain; the property must be a member of the object itself.

Example

In the following example, all String objects share a common split method.

var s = new String("JScript");
print(s.hasOwnProperty("split"));
print(String.prototype.hasOwnProperty("split"));

The output of this program is:

false
true

Requirements

Version 5.5

Applies To:

Object Object

Reference

in Operator

Did you find this helpful? Yes No

Not accurate

Not enough depth

Need more code examples

(1500 characters remaining)

Community Additions

ADD