Need help to iterate array

[muhammad-arif]

You have an excellent project and documentation here. But due to my limited knowledge and experience, I am struggling to understand a few concepts. In the following example, you have shown how to find a path here

if !SupportedCPU() {
    // Fake it
    fmt.Println("string\nhttp://www.example.com/image/481989943 <nil>")
    return
}
input := `{
    "Image":
    {
        "Animated": false,
        "Height": 600,
        "IDs":
        [
            116,
            943,
            234,
            38793
        ],
        "Thumbnail":
        {
            "Height": 125,
            "Url": "http://www.example.com/image/481989943",
            "Width": 100
        },
        "Title": "View from 15th Floor",
        "Width": 800
    },
    "Alt": "Image of city" 
}`
pj, err := Parse([]byte(input), nil)
if err != nil {
    log.Fatal(err)
}
i := pj.Iter()
i.AdvanceInto()

// Grab root
_, root, err := i.Root(nil)
if err != nil {
    log.Fatal(err)
}
// Grab top object
obj, err := root.Object(nil)
if err != nil {
    log.Fatal(err)
}

// Find element in path.
elem, err := obj.FindPath(nil, "Image", "Thumbnail", "Url")
if err != nil {
    log.Fatal(err)
}

// Print result:
fmt.Println(elem.Type)
fmt.Println(elem.Iter.String())

What I am strugling to understand is that, the path you are choosing (Image -> Thumbnail -> Url) is an object but if it is an array how can I decipher it. For example, if I want to find the falue of IDs (eg, elem, err := obj.FindPath(nil, "Image", "IDs" ) I cannot convert it to a String or bytearray. Would you add an example in the doc or here how can I parse the array in this example? Thanks

[klauspost]

func ExampleArray() {
    if !SupportedCPU() {
        // Fake it
        fmt.Println("Found array\nType: int value: 116\nType: int value: 943\nType: int value: 234\nType: int value: 38793")
        return
    }
    input := `{
    "Image":
    {
        "Animated": false,
        "Height": 600,
        "IDs":
        [
            116,
            943,
            234,
            38793
        ],
        "Thumbnail":
        {
            "Height": 125,
            "Url": "http://www.example.com/image/481989943",
            "Width": 100
        },
        "Title": "View from 15th Floor",
        "Width": 800
    },
    "Alt": "Image of city" 
}`
    pj, err := Parse([]byte(input), nil)
    if err != nil {
        log.Fatal(err)
    }
    i := pj.Iter()
    i.AdvanceInto()

    // Grab root
    _, root, err := i.Root(nil)
    if err != nil {
        log.Fatal(err)
    }
    // Grab top object
    obj, err := root.Object(nil)
    if err != nil {
        log.Fatal(err)
    }

    // Find element in path.
    elem, err := obj.FindPath(nil, "Image", "IDs")
    if err != nil {
        log.Fatal(err)
    }
    fmt.Println("Found", elem.Type)
    if elem.Type == TypeArray {
        array, err := elem.Iter.Array(nil)
        if err != nil {
            log.Fatal(err)
        }
        array.ForEach(func(i Iter) {
            asString, _ := i.StringCvt()
            fmt.Println("Type:", i.Type(), "value:", asString)
        })
    }
    //Output:
    //Found array
    //Type: int value: 116
    //Type: int value: 943
    //Type: int value: 234
    //Type: int value: 38793
}