diff --git a/climbing-stairs/jthw1005.js b/climbing-stairs/jthw1005.js
new file mode 100644
index 0000000000..c4df4152a4
--- /dev/null
+++ b/climbing-stairs/jthw1005.js
@@ -0,0 +1,13 @@
+function climbStairs(n) {
+  const memo = {};
+
+  function dp(k) {
+    if (k === 1) return 1;
+    if (k === 2) return 2;
+    if (memo[k]) return memo[k];
+    memo[k] = dp(k - 1) + dp(k - 2);
+    return memo[k];
+  }
+
+  return dp(n);
+}
diff --git a/valid-anagram/jthw1005.js b/valid-anagram/jthw1005.js
new file mode 100644
index 0000000000..3ba2b4a480
--- /dev/null
+++ b/valid-anagram/jthw1005.js
@@ -0,0 +1,14 @@
+const isAnagram = (s, t) => {
+  const data = new Array(26).fill(0);
+  const a_ascii = 'a'.charCodeAt();
+
+  for (const char of s) {
+    data[char.charCodeAt() - a_ascii]++;
+  }
+
+  for (const char of t) {
+    data[char.charCodeAt() - a_ascii]--;
+  }
+
+  return !data.some((el) => el !== 0);
+};