range in golang code example

Example 1: go loop through map

for k, v := range m { 
    fmt.Printf("key[%s] value[%s]\n", k, v)
}

// or

for k := range m {
    fmt.Printf("key[%s] value[%s]\n", k, m[k])
}

Example 2: golang iterate through slice

var slice = []string{"Apple", "Orange", "Kiwi"}
for index, sliceItem := range slice { // You can omit index or sliceItem with a _
  fmt.Println("Index in slice:", index)
  fmt.Println("Fruit:", sliceItem)
}

Example 3: go iterate over slice

nums := []int{2, 3, 4}
    sum := 0
    for _, num := range nums {
        sum += num
    }
    fmt.Println("sum:", sum)

Example 4: golang range arrat

for i, num := range nums {
        if num == 3 {
            fmt.Println("index:", i)
        }
    }

Example 5: range in go

kvs := map[string]string{"a": "apple", "b": "banana"}
    for k, v := range kvs {
        fmt.Printf("%s -> %s\n", k, v)
    }