How to loop through the string interface in golang

php editor Youzi brings you a concise answer on how to loop through the string interface in golang. In golang, strings are stored in the form of bytes, so to iterate over a string, we need to convert it to a byte array first. By using the range keyword we can easily iterate through the string and get the index and value of each byte. In this way, we can easily process each character in the string and perform corresponding operations. Whether it is traversing strings or processing other operations, golang provides simple and powerful tools to meet our needs.

Question content

I have an interface that contains some strings. I want to print out each item. For example, consider the following interface. Here I want to print sud first, and then man

var x interface{} = []string{"sud", "man"}

Solution

You can use something like this:

    var x interface{} = []string{"sud", "man"}

    res, ok := x.([]string)
    if !ok {
        fmt.Errorf("error")
    }

    for i := range res {
        fmt.Println(res[i])
    }

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