How to merge two maps in Go?

To merge two maps in Go, you can follow these steps:

Create a new result map to store the merged map.
Iterate over the first map using a for range loop.
For each key-value pair in the first map, add the key-value pair to the result map.
Iterate over the second map using a for range loop.
For each key-value pair in the second map, check if the key exists in the result map.
- If the key exists in the result map, update the value with the value from the second map.
- If the key does not exist in the result map, add the key-value pair to the result map.
At the end of the loops, the result map will contain the merged map.

Here's an example implementation:

func mergeMaps(m1, m2 map[string]int) map[string]int {
    result := make(map[string]int)

    // Merge m1 into result
    for key, value := range m1 {
        result[key] = value
    }

    // Merge m2 into result, updating values if keys exist
    for key, value := range m2 {
        result[key] = value
    }

    return result
}

This function takes two maps as input m1 and m2 with string keys and int values and returns a new merged map. You can modify the function based on your specific map types and key-value types.