perf: use a class for object creation

jshttp · Mar 25, 2017 · e5201db · e5201db
1 parent 4ee2df9
commit e5201db
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Showing 2 changed files with 14 additions and 10 deletions.
diff --git a/HISTORY.md b/HISTORY.md
@@ -3,6 +3,7 @@ unreleased
 
   * Remove `parse(req)` and `parse(res)` signatures
     - Use the `content-type` module for content type parsing
+  * perf: use a class for object creation
 
 0.3.0 / 2014-09-07
 ==================

diff --git a/index.js b/index.js
@@ -153,7 +153,6 @@ function parse (string) {
   var key
   var match
   var obj = splitType(type)
-  var params = {}
   var value
 
   PARAM_REGEXP.lastIndex = index
@@ -174,15 +173,13 @@ function parse (string) {
         .replace(QESC_REGEXP, '$1')
     }
 
-    params[key] = value
+    obj.parameters[key] = value
   }
 
   if (index !== -1 && index !== string.length) {
     throw new TypeError('invalid parameter format')
   }
 
-  obj.parameters = params
-
   return obj
 }
 
@@ -235,11 +232,17 @@ function splitType (string) {
     subtype = subtype.substr(0, index)
   }
 
-  var obj = {
-    type: type,
-    subtype: subtype,
-    suffix: suffix
-  }
+  return new MediaType(type, subtype, suffix)
+}
 
-  return obj
+/**
+ * Class for MediaType object.
+ * @public
+ */
+
+function MediaType (type, subtype, suffix) {
+  this.type = type
+  this.subtype = subtype
+  this.suffix = suffix
+  this.parameters = Object.create(null)
 }