Function JSPropertyNameArrayGetCount 

pub unsafe extern "C-unwind" fn JSPropertyNameArrayGetCount(
    array: JSPropertyNameArrayRef,
) -> usize

Available on crate features JSBase and JSObjectRef only.

Gets a count of the number of items in a JavaScript property name array.

Parameter array: The array from which to retrieve the count.

Returns: An integer count of the number of names in array.

Safety

array must be a valid pointer.