diff --git a/jungmyunggi/Numberof Different Integer in a String.js b/jungmyunggi/Numberof Different Integer in a String.js
new file mode 100644
index 0000000..ffb0038
--- /dev/null
+++ b/jungmyunggi/Numberof Different Integer in a String.js	
@@ -0,0 +1,11 @@
+/**
+ * @param {string} word
+ * @return {number}
+ */
+var numDifferentIntegers = function(word) {
+    const regex = /[0-9]+/g;
+    const arr = word.match(regex)
+    if(!arr) return 0
+    const set = new Set(arr.map(n => BigInt(n)))
+    return [...set].length
+};