Fast path for plain objects.

benjamn · Feb 26, 2016 · 20ed1ad · 20ed1ad
1 parent fab2d8a
commit 20ed1ad
Showing 1 changed file with 15 additions and 1 deletion.
diff --git a/index.js b/index.js
@@ -78,7 +78,10 @@ function toTable(value) {
  if (value && typeof value === "object") {
  var keys = Object.keys(value);
 
- if (Array.isArray(value)) {
+ if (isPlainObject(value)) {
+ result = {};
+
+ } else if (Array.isArray(value)) {
  result = Array(value.length);
  var len = value.length;
  if (len > keys.length) {
@@ -136,6 +139,17 @@ function toTable(value) {
  return table;
 }
 
+function isPlainObject(value) {
+ var isObject = value && typeof value === "object";
+ if (isObject) {
+ var proto = Object.getPrototypeOf
+ ? Object.getPrototypeOf(value)
+ : value.__proto__;
+ return proto === Object.prototype;
+ }
+ return false;
+}
+
 exports.decode = exports.parse =
 function decode(encoding) {
  return fromTable(JSON.parse(encoding));