hasOwnProperty Method (JScript 5.6)


object.hasOwnProperty(proName)

object: Required. Instance of an object.

proName: Required. String value of a property name.

The hasOwnProperty method returns true if 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.

In the following example, all String objects share a common split method. The following code will print false and true.

┬á	Copy Code
var s = new String("JScript"); print(s.hasOwnProperty("split")); print(String.prototype.hasOwnProperty("split"));

Version 5.5

Applies To: Object Object (JScript 5.6)

Reference

in Operator (JScript 5.6)

Arguments

Remarks

Example

Requirements

See Also

Reference