optimize PATH.basename

1 files changed, 3 insertions, 1 deletions

diff --git a/src/library_path.js b/src/library_path.js
index 01476e8d..f00a7586 100644
--- a/src/library_path.js
+++ b/src/library_path.js
@@ -62,7 +62,9 @@ mergeInto(LibraryManager.library, {
     basename: function(path) {
       // EMSCRIPTEN return '/'' for '/', not an empty string
       if (path === '/') return '/';
-      return PATH.splitPath(path)[2];
+      var lastSlash = path.lastIndexOf('/');
+      if (lastSlash === -1) return path;
+      return path.substr(lastSlash+1);
     },
     extname: function(path) {
       return PATH.splitPath(path)[3];