Merge pull request #1482 from antimatter15/patch-2

alubbe · web-flow · commit 96cd219a8cce · 2020-10-01T09:52:23.000+02:00
Performance improvement in col-cache
diff --git a/lib/utils/col-cache.js b/lib/utils/col-cache.js
@@ -47,6 +47,9 @@ const colCache = {
     let l2;
     let l3;
     let n = 1;
+    if (level >= 4) {
+      throw new Error(`Out of bounds. Excel supports columns from 1 to 16384`);
+    }
     if (level >= 1) {
       while (n <= 26) {
         c = this._dictionary[n - 1];
