What happens if you try to access a key that doesn't exist in a map?
- It creates a new key-value pair with a default value
- It returns a default value associated with the map's value type
- It returns an empty value
- It throws a runtime error
If you try to access a key that doesn't exist in a map in Go, it returns a default value associated with the map's value type. Go maps have a zero value for non-existent keys, which is the default value of the value type stored in the map. This behavior ensures that accessing non-existent keys doesn't cause runtime errors and allows for graceful handling of missing keys in map operations.
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