flow like the river

VISUALIZACION/node_modules/domhandler/lib/node.js

@@ -0,0 +1,44 @@
+// This object will be used as the prototype for Nodes when creating a
+// DOM-Level-1-compliant structure.
+var NodePrototype = module.exports = {
+	get firstChild() {
+		var children = this.children;
+		return children && children[0] || null;
+	},
+	get lastChild() {
+		var children = this.children;
+		return children && children[children.length - 1] || null;
+	},
+	get nodeType() {
+		return nodeTypes[this.type] || nodeTypes.element;
+	}
+};
+
+var domLvl1 = {
+	tagName: "name",
+	childNodes: "children",
+	parentNode: "parent",
+	previousSibling: "prev",
+	nextSibling: "next",
+	nodeValue: "data"
+};
+
+var nodeTypes = {
+	element: 1,
+	text: 3,
+	cdata: 4,
+	comment: 8
+};
+
+Object.keys(domLvl1).forEach(function(key) {
+	var shorthand = domLvl1[key];
+	Object.defineProperty(NodePrototype, key, {
+		get: function() {
+			return this[shorthand] || null;
+		},
+		set: function(val) {
+			this[shorthand] = val;
+			return val;
+		}
+	});
+});