[Marson]

var someTree = {
    tagName: "table", //html tag
    subTags: [ //вложенные тэги
        {
                    tagName: "tr",
                    subTags: [
                        {
                            tagName: "td",
                            text: "some text",
                        },
                        {
                            tagName: "td",
                            text: "some text 2",
                        }
                    ]
        }
    ],
    attrs: 
    {
        border: 1,
    },
}

Помогите дописать код, нужно с рекурсией, вот мой код:

var someTree = {
    tagName: "table", //html tag
    subTags: [ //вложенные тэги
        {
                    tagName: "tr",
                    subTags: [
                        {
                            tagName: "td",
                            text: "some text",
                        },
                        {
                            tagName: "td",
                            text: "some text 2",
                        }
                    ]
        }
    ],
    attrs: 
    {
        border: 1,
    },
}

function walker(node, nestedFieldName, deepness, callback){
    callback(node, nestedFieldName, deepness);
    if (nestedFieldName in node){
        for (key in node[nestedFieldName]){
            walker(node[nestedFieldName][key], nestedFieldName, deepness +1, callback)
        }
    }
}

var str = "";
walker(someTree, "subTags", 0, function(node, nestedFieldName, deepness){
    str += "  ".repeat(deepness) + node.tagName + "\n";
});

console.log(str);

Должно получиться:

<table border=1>
<tr>
<td>some text</td>
<td>some text 2</td>
</tr>
</table>