Removes a specified element or numeric property from an object.
||Pointer to a JS context from which to derive runtime information.
Requires request. In a
||Object from which to delete an element.|
||Index number of the element to delete.|
JS_DeleteElement removes a specified element or numeric property,
index, from an object,
obj. If an object references an element belonging to a prototype, the element reference is removed from the object, but the prototype's element is not deleted. If deletion is successful,
JS_TRUE. Otherwise it returns
JS_DeleteElement reports the error before returning