Entry: JS_GetPropertyAttributes (Function)
Summary: Retrieves the attributes of a specified property.
Syntax:
JSBool JS_GetPropertyAttributes(JSContext *cx, JSObject *obj,
const char *name, uintN *attrsp, JSBool *foundp);
Argument Type Description
cx JSContext * Pointer to a JS context from which to derive runtime information.
obj JSObject * Object from which to retrieve property attributes.
name const char * Name of the property from which to retrieve attributes.
uintN attrsp * Pointer to the storage area into which to place retrieves attributes.
foundp JSBool * Flag indicating whether or not the specified property was located.
Description:
JS_GetPropertyAttributes retrieves the attributes for a specified property, name. cx is the context, and obj is a pointer to the object that owns the property. attrsp is a pointer to the unsigned integer storage area into which to retrieve the attributes.
If JS_GetPropertyAttributes cannot locate an object with the specified property, it returns JS_FALSE, and both attrsp and foundp are undefined.
If the specified property or the specified object does not exist, foundp is set to JS_FALSE. If the property exists, but belongs to another object, JS_GetPropertyAttributes then returns JS_FALSE, and attrsp is undefined. If the property exists and it belongs to the object you specify, then foundp is set to JS_TRUE. If JS_GetPropertyAttributes can actually read the current property values, it returns JS_TRUE. Otherwise, it returns JS_FALSE.
See also:
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