[HAI] isIsomorphic my solution

lib/isIsomorphic/isIsomorphic.ts

@@ -0,0 +1,16 @@
+export function isIsomorphic(s: string, t: string): boolean {
+  let ht: Record<string, string> = {};
+  let ht2: Record<string, string> = {};
+  if (s.length !== t.length) return false;
+
+  for (let [index, key] of Object.entries(s)) {
+    const currentValue = t[index];
+    if (key in ht && currentValue !== ht[key]) return false;
+    if (currentValue in ht2 && key !== ht2[currentValue]) return false;
+
+    ht[key] = currentValue;
+    ht2[currentValue] = key;
+  }
+
+  return true;
+}