优化性能

lib/index.js

@@ -143,9 +143,10 @@ FilterXSS.prototype.filterAttributes = function (tagName, attrs) {
   var me = this;
   var whites = this.whiteList[tagName];
   var lastPos = 0;
-  var _attrs = [];
+  var _attrs = '';
   var tmpName = false;
   var hasSprit = false;
+
   var addAttr = function (name, value) {
     name =  name.trim();
     if (!hasSprit && name === '/') {
@@ -172,9 +173,10 @@ FilterXSS.prototype.filterAttributes = function (tagName, attrs) {
           value = newValue;
         }
       }
-      _attrs.push(name + (value ? '="' + value + '"' : ''));
+      _attrs += name + (value ? '="' + value + '"' : '') + ' ';
     }
   };
+
   for (var i = 0, len = attrs.length; i < len; i++) {
     var c = attrs[i];
     if (tmpName === false && c === '=') {
@@ -209,6 +211,7 @@ FilterXSS.prototype.filterAttributes = function (tagName, attrs) {
       continue;
     }
   }
+
   if (lastPos < attrs.length) {
     if (tmpName === false) {
       addAttr(attrs.slice(lastPos));
@@ -216,8 +219,9 @@ FilterXSS.prototype.filterAttributes = function (tagName, attrs) {
       addAttr(tmpName, attrs.slice(lastPos));
     }
   }
-  if (hasSprit) _attrs.push('/');
-  return _attrs.join(' ');
+  if (hasSprit) _attrs += '/';
+  
+  return _attrs.trim();
 };
 
 /**

package.json

@@ -1,7 +1,7 @@
 {
   "name":           "xss",
   "main":           "./lib/index.js",
-  "version":        "0.0.3",
+  "version":        "0.0.4",
   "description":    "XSS攻击代码过滤 Remove XSS attack vectors from user-supplied HTML",
   "author":         "leizongmin <leizongmin@gmail.com> (http://ucdok.com)",
   "repository": {