2 ms·
If you have objects storing NS(String|Array|Dictionary)s, you ought to copy them before storing, otherwise you might inadvertently end up storing an NSMutable(
by meindnoch 2y ago
If you have objects storing NS(String|Array|Dictionary)s, you ought to copy them before storing, otherwise you might inadvertently end up storing an NSMutable(String|Array|Dictionary), which can get updated behind your back, producing hard to debug issues.