중복된 숫자 개수 / 기초

Author: imchanyo

imchanyo/[week1]Array/Number_of_duplicate_numbers.js

@@ -0,0 +1,11 @@
+function solution(array, n) {
+  var answer = [];
+
+  array.forEach((num) => {
+    if (num === n) {
+      answer.push(num);
+    }
+  });
+
+  return answer.length;
+}