diff --git a/bangdori/8.js b/bangdori/8.js
new file mode 100644
index 0000000..a2f6875
--- /dev/null
+++ b/bangdori/8.js
@@ -0,0 +1,30 @@
+/**
+ * @param {string} s
+ * @return {number}
+ */
+var myAtoi = function (s) {
+  const trimmedString = s.trim();
+  const isNegative = trimmedString[0] === "-";
+
+  let i = isNegative || trimmedString[0] === "+" ? 1 : 0;
+  let curr = "";
+  for (i; i < trimmedString.length; i++) {
+    if (curr.length === 0 && trimmedString[i] === "0") continue;
+    if (trimmedString[i] === " ") break;
+
+    if (Number.isInteger(Number(trimmedString[i]))) {
+      curr += trimmedString[i];
+    } else break;
+  }
+
+  if (!curr) curr = 0;
+
+  const answer = Number(curr);
+  if (isNegative) {
+    if (-answer < -(2 ** 31)) return -(2 ** 31);
+    else return -answer;
+  } else {
+    if (answer > 2 ** 31 - 1) return 2 ** 31 - 1;
+    else return answer;
+  }
+};