add: 除自身以外数组的乘积

src/array/product-of-array-except-self.js

@@ -0,0 +1,21 @@
+/**
+ * @param {number[]} nums
+ * @return {number[]}
+ */
+export const productExceptSelf = function (nums) {
+  const ans = []
+  for (let i = 0, len = nums.length; i < len; i++) {
+    let tmpL = 1
+    let tmpR = 1
+    for (let j = 0; j < len; j++) {
+      if (j < i) {
+        tmpL *= nums[j]
+      } else if (j > i) {
+        tmpR *= nums[j]
+      }
+    }
+    ans.push(tmpL * tmpR)
+  }
+
+  return ans
+}