From 9a1de81fc53b9ce993a775a5f1516861b4d95ad5 Mon Sep 17 00:00:00 2001
From: robertmesserle <robertmesserle@gmail.com>
Date: Fri, 6 Dec 2013 09:32:25 -0800
Subject: [PATCH] Optimized compact method by using a counter in place of
 Array.prototype.push()

---
 lodash.js | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/lodash.js b/lodash.js
index fcb2fa4e1..fbb814194 100644
--- a/lodash.js
+++ b/lodash.js
@@ -4501,12 +4501,13 @@
     function compact(array) {
       var index = -1,
           length = array ? array.length : 0,
-          result = [];
+          result = [],
+          cur = 0,
+          value;
 
       while (++index < length) {
-        var value = array[index];
-        if (value) {
-          result.push(value);
+        if (value = array[index]) {
+          result[cur++] = value;
         }
       }
       return result;