for loop range golang code example

Example 1: go iterate over slice

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

Example 2: golang range arrat

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

Example 3: range in go

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

Example 4: for range go

arr = [1,2,3,4]
for i, val := range arr {
	print(i, val) // prints iterator, value
}