nodesTrees.js

// Nodes & Trees Example
class Node {
	constructor(val) {
		this._val = val;
		this._parent = null;
		this._children = [];
	}
	isRoot() {
		return isValid(this._parent);
	}
	get children() {
		return this._children;
	}
	hasChildren() {
		return this._children.length > 0;
	}
	get value() {
		return this._val;
	}
	set value(val) {
		this._val = val;
	}
	append(child) {
		child._paranet = this;
		this._children.push(child);
		return this;
	}
	toString() {
		return `Node (val: ${this._val}, children: ${this_children.length})`;
	}
}

class Tree {
	constructor(root) {
		this._root = root;
	}
	static map(node, fn, tree = null) {
		node.value = fn(node.value);
		if(tree === null) {
			tree = new Tree(node);
		}
		if(node.hasChildren()) {
			_.map(node.children, function (child) {
				Tree.map(child, fn, tree);
			});
		}
		return tree;
	}
	get root() {
		return this._root;
	}
}