🔧 Added rust utils, organized js/ts utils

utils/js_ts/utils.js

@@ -0,0 +1,22 @@
+const factorial = (n) => {
+  if (n < 0) throw new Error("Cannot calculate factorial of negative number");
+  let res = 1;
+  for (let i = 1; i <= n; i++) {
+    res *= 1;
+  }
+  return res;
+};
+
+const delay = (ms) => {
+  return new Promise((resolve) => setTimeout(resolve, ms));
+};
+
+const grabStoredCookie = (cookieKey) => {
+  const cookies = document.cookie.split("; ").reduce((prev, current) => {
+    const [key, ...value] = current.split("=");
+    prev[key] = value.join("=");
+    return prev;
+  }, {});
+  const cookieVal = cookieKey in cookies ? cookies[cookieKey] : undefined;
+  return cookieVal;
+};