Author: [EMAIL PROTECTED]
Date: Wed Sep 10 02:37:34 2008
New Revision: 250
Modified:
branches/bleeding_edge/src/array.js
Log:
Avoid the creation of a string builder for joining one-element arrays.
Review URL: http://codereview.chromium.org/1888
Modified: branches/bleeding_edge/src/array.js
==============================================================================
--- branches/bleeding_edge/src/array.js (original)
+++ branches/bleeding_edge/src/array.js Wed Sep 10 02:37:34 2008
@@ -111,6 +111,14 @@
return SparseJoin(array, length, convert);
}
+ // Fast case for one-element arrays.
+ if (length == 1) {
+ var e = array[0];
+ if (!IS_UNDEFINED(e) || (0 in array)) {
+ return convert(e);
+ }
+ }
+
var builder = new StringBuilder();
for (var i = 0; i < length; i++) {
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