I need to create a custom tree data-structure using JavaScript

Question

I looked up this basic format for a tree structure in javascript:

function Tree(parent, child, data) {
    this.parent = parent;
    this.children = child || [];         


        

Answer 1

var Tree = function () {
    Tree.obj = {};
    return Tree;
};

// Parent Will be object
Tree.AddChild = function (parent, child) {

    if (parent === null) {
        if (Tree.obj.hasOwnProperty(child)) {
            return Tree.obj[child];
        } else {
            Tree.obj[child] = {};
            return Tree.obj[child];
        }
    } else {
        parent[child] = {};
        return parent[child];
    }
};


// Uses

// Inserting - 
var t = Tree();
var twoDoor = t.AddChild(null, "2 Door");
var fdoor = t.AddChild(null, "4 Door");
t.AddChild(fdoor, "manual");
t.AddChild(twoDoor, "automatic");
var man = t.AddChild(twoDoor, "manual");
t.AddChild(man, "Extended Cab");
console.log(t.obj);