feat(node.js): expose node types

lib/node.js

@@ -12,6 +12,19 @@ const fs = require('fs-promise')
  */
 class Node {
 
+    /** */
+    static get TYPE_COMMENT() {
+        return 'comment'
+    }
+    /** */
+    static get TYPE_TAG() {
+        return 'tag'
+    }
+    /** */
+    static get TYPE_TEXT() {
+        return 'text'
+    }
+
     /**
     * Creates a new document of a files contents
     * @param {string} path path to a file
@@ -155,30 +168,30 @@ class Node {
       */
     find(element, attrs, limit) {
 
-        if (typeof tag === 'string') {
-            const name = tag
+        if (typeof element === 'string') {
+            const name = element
 
-            tag = {
+            element = {
                 type: 'tag',
                 name: name
             }
         }
 
-        const elements = domUtils.filter((element) => {
+        const elements = domUtils.filter((el) => {
             let found = true
 
-            found = Object.keys(tag).every((key) => element[key] === tag[key])
+            found = Object.keys(element).every((key) => el[key] === element[key])
 
             if (found && attrs) {
                 found = attrs.find((attr) => {
-                    return element.attribs[attr.key] === attr.value
+                    return el.attribs[attr.key] === attr.value
                 })
             }
 
             return found
         }, this._element, true, limit)
 
-        return elements.map((element) => new Node(element))
+        return elements.map((el) => new Node(el))
     }
 
     /**