Remove dependency

Author: wooorm

lib/one.js

@@ -3,9 +3,10 @@
 module.exports = one;
 
 var u = require('unist-builder');
-var has = require('has');
 var all = require('./all');
 
+var own = {}.hasOwnProperty;
+
 /* Transform an unknown node. */
 function unknown(h, node) {
   if (text(node)) {
@@ -18,7 +19,7 @@ function unknown(h, node) {
 /* Visit a node. */
 function one(h, node, parent) {
   var type = node && node.type;
-  var fn = has(h.handlers, type) ? h.handlers[type] : null;
+  var fn = own.call(h.handlers, type) ? h.handlers[type] : null;
 
   /* Fail on non-nodes. */
   if (!type) {
@@ -32,7 +33,7 @@ function one(h, node, parent) {
 function text(node) {
   var data = node.data || {};
 
-  if (has(data, 'hName') || has(data, 'hProperties') || has(data, 'hChildren')) {
+  if (own.call(data, 'hName') || own.call(data, 'hProperties') || own.call(data, 'hChildren')) {
     return false;
   }
 

package.json

@@ -21,7 +21,6 @@
   "dependencies": {
     "collapse-white-space": "^1.0.0",
     "detab": "^2.0.0",
-    "has": "^1.0.1",
     "mdast-util-definitions": "^1.2.0",
     "normalize-uri": "^1.0.0",
     "trim": "0.0.1",