Backend half

2025-07-11 19:56:28 +02:00
parent fa868e7c1d
commit 8600fa7c1d
19426 changed files with 3750448 additions and 8108 deletions
@@ -0,0 +1,9 @@
+export const substring = (input, start, stop, reverse) => {
+    if (start >= stop || input.length < stop) {
+        return null;
+    }
+    if (!reverse) {
+        return input.substring(start, stop);
+    }
+    return input.substring(input.length - stop, input.length - start);
+};