initial commit

2026-05-13 14:20:41 +00:00
commit 6e178d2012
6022 changed files with 399872 additions and 0 deletions
@@ -0,0 +1,9 @@
+export const substring = (input, start, stop, reverse) => {
+    if (start >= stop || input.length < stop || /[^\u0000-\u007f]/.test(input)) {
+        return null;
+    }
+    if (!reverse) {
+        return input.substring(start, stop);
+    }
+    return input.substring(input.length - stop, input.length - start);
+};