Added check for index on merge_above to resolve #330

11 years ago · 7999edb5b8
parent 45b9caf82b
commit 7999edb5b8
1 changed files with 3 additions and 1 deletions
--- a/notebook/static/notebook/js/notebook.js
+++ b/notebook/static/notebook/js/notebook.js
@ -1496,7 +1496,9 @@ define(function (require) {
     */
    Notebook.prototype.merge_cell_above = function () {
        var index = this.get_selected_index();
-        this.merge_cells([index-1, index], true)
+        if (index != 0) {
+            this.merge_cells([index-1, index], true)
+        }
    };

    /**