1822\. Sign of the Product of an Array

Easy

There is a function `signFunc(x)` that returns:

*   `1` if `x` is positive.
*   `-1` if `x` is negative.
*   `0` if `x` is equal to `0`.

You are given an integer array `nums`. Let `product` be the product of all values in the array `nums`.

Return `signFunc(product)`.

**Example 1:**

**Input:** nums = [-1,-2,-3,-4,3,2,1]

**Output:** 1

**Explanation:** The product of all values in the array is 144, and signFunc(144) = 1

**Example 2:**

**Input:** nums = [1,5,0,2,-3]

**Output:** 0

**Explanation:** The product of all values in the array is 0, and signFunc(0) = 0

**Example 3:**

**Input:** nums = [-1,1,-1,1,-1]

**Output:** -1

**Explanation:** The product of all values in the array is -1, and signFunc(-1) = -1

**Constraints:**

*   `1 <= nums.length <= 1000`
*   `-100 <= nums[i] <= 100`