What consequences can arise from concurrent writing to a standard map without synchronization?

In Go, the standard map is not thread-safe for concurrent read and write operations. If multiple goroutines write to the same map simultaneously without synchronization, it can lead to data races, which may cause:

• Runtime panics with a message about concurrent map access.
• Data corruption in the map, leading to incorrect program behavior.
• Unpredictable behavior and debugging difficulties.

To safely work with maps in a multithreaded environment, synchronization mechanisms such as sync.Mutex or sync.RWMutex should be used, or thread-safe data structures like sync.Map.