I am a beginner with go and i am experimenting with different data types, I want to know how to find the minimum value in a map as it could be useful later and im curious.

These are two functions of two different attempts to get this working, neither worked, some showed me the maximum value of a map

    func printMinValue() {
        // Check if the number of entries in the map is less than gridWidth
        if len(heightMapping) < gridWidth {
            fmt.Println(0)
            return
        }

        // Find the minimum value in the map
        minValue := math.MaxInt32
        for _, value := range heightMapping {
            if value < minValue {
                minValue = value
            }
        }

            // Print the minimum value if valid
            if minValue == math.MaxInt32 {
                fmt.Println(0)
            } else {
                fmt.Println(minValue)
            }
        }

    func findMinValue(m map[int]int) (int, error) {
        if len(m) == 0 {
            return 0, fmt.Errorf("map is empty")
        }

        minValue := math.MinInt // Start with the maximum possible integer value

        for _, value := range m {
            if gridHeight-value > minValue {
                minValue = value
            }
        }