JavaScript Recursion Example

Recursion Example

(function () {

    "use strict";

    var list = [
        { name: "level 1", obs: [
            {name: "level 2", obs: [
                {name: "level 3 a"},
                {name: "level 3 b"}
            ]}
        ]},
        {name: "section 2"}
    ];


    function recurse(arr,prop, spacer) {
        var len = arr.length,
            i = 0,
            str = "",
            curr;
        spacer = spacer || "";

        for (i; i < len; i++) {
            str += spacer + arr[i].name + "\n";

            curr = arr[i];
            if (curr[prop] && curr[prop].length) {
                str += recurse(curr[prop], prop, spacer + "\t");
            }
        }

        return str;
    }


    console.log(recurse(list, 'obs'));


}());