Deprecated since JavaScript api16
This feature is no longer recommended. Though some browsers might still support it, it may have already been removed from the relevant web standards, may be in the process of being dropped, or may only be kept for compatibility purposes. Avoid using it, and update existing code if possible; see the compatibility table at the bottom of this page to guide your decision. Be aware that this feature may cease to work at any time.

Internal use only. The type of JavaScript object properties, used by the JSObjectOps layer.


struct JSProperty {
    jsid id;


JSProperty is the abstract base class of all object properties. It is used internally in JSObjectOps.lookupProperty, getAttributes, setAttributes, and dropProperty.

See Also