提交238 除自身之外数组的乘积

yllg · yllg · commit 5a882d01cf66 · 2020-02-10T21:03:01.000+08:00
diff --git a/238.除自身以外数组的乘积/solution.html b/238.除自身以外数组的乘积/solution.html
@@ -0,0 +1,41 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Document</title>
+</head>
+<body>
+<script>
+// Source : https://leetcode.com/problems/product-of-array-except-self/
+// Author : 悬笔e绝
+// Date   : 2020-02-10
+
+/**
+ * @param {number[]} nums
+ * @return {number[]}
+ */
+
+function fn(array, idx) {
+  var ans = 1;
+  array.forEach(function(item, index, array) {
+    if (idx !== index)
+      ans *= item;
+  });
+  return ans;
+}
+
+var productExceptSelf = function(nums) {
+  var tmp = nums.reduce(function(pre, cur, index, array) {
+    return pre * cur;
+  });
+  var ans = nums.map(function(item, index, array) {
+    if (item === 0)
+      return fn(array, index);
+    return tmp / item;
+  });
+  return ans;
+};
+</script>
+</body>
+</html>
