fixed path cleaning

fixed path cleaning with leading '..'s (from submitting to leetcode lol)

1 files changed, 1 insertions, 1 deletions

diff --git a/src/jssh.js b/src/jssh.js
index ee3eb6d..ffdf1e2 100644
--- a/src/jssh.js
+++ b/src/jssh.js
@@ -70,7 +70,7 @@ class jssh {
       });
     for (let i = 0; i != path.length; i++) {
       if (path[i] == "..") {
-        path.splice(i - 1, 2);
+        path.splice(i>0?i-1:0, i>0?2:1);
         return this.clean_path("/" + path.join("/"));
       }
     }