fixed a bug

2026-02-07 10:47:06 +08:00
parent 84e96f029d
commit 8d7c91b7e4
1 changed files with 6 additions and 2 deletions
--- a/module.js
+++ b/module.js
@@ -43,9 +43,13 @@ M.mod_programming.init_history = function(Y) {
    dp.sh.HighlightAll('code');

    var r = Y.all('.diff1');
+    if (r.size() > 0) {
        r.item(0).hide();
+    }
    r = Y.all('.diff2');
-    r.item(r.size()-1).hide();
+    if (r.size() > 0) {
+        r.item(r.size() - 1).hide();
+    }

    var is_history_diff_form_submitable = function() {
        var f1 = false, f2 = false;