diff --git a/src/leecode/javascript/1523.在区间范围内统计奇数数目.js b/src/leecode/javascript/1523.在区间范围内统计奇数数目.js
new file mode 100644
index 0000000..dc189af
--- /dev/null
+++ b/src/leecode/javascript/1523.在区间范围内统计奇数数目.js
@@ -0,0 +1,35 @@
+/*
+ * @lc app=leetcode.cn id=1523 lang=javascript
+ * @lcpr version=
+ *
+ * [1523] 在区间范围内统计奇数数目
+ */
+
+// @lc code=start
+/**
+ * @param {number} low
+ * @param {number} high
+ * @return {number}
+ */
+var countOdds = function (low, high) {
+  let ans = 0;
+  for (let i = low; i <= high; i++) {
+    // 奇数与1为1
+    if (i & 1) {
+      ans ++;
+    }
+  }
+  return ans;
+};
+// @lc code=end
+
+/*
+// @lcpr case=start
+// 3\n7\n
+// @lcpr case=end
+
+// @lcpr case=start
+// 8\n10\n
+// @lcpr case=end
+
+ */