Why use parentheses when returning in JavaScript?

题意：为什么在 JavaScript 中返回时使用括号？

问题背景：

In the Restify framework code I found this function:

在 Restify 框架代码中，我发现了这个函数：

function queryParser(options) {

    function parseQueryString(req, res, next) {
        // Some code goes there
        return (next());
    }
    return (parseQueryString);
}

Why would the author write return (next()); and return (parseQueryString);? Does it need parentheses there and if so, why?

为什么作者会写 return (next()); 和 return (parseQueryString);？在这里需要括号吗，如果需要，原因是什么？

问题解决：

It doesn't need to be that way, but it's valid JavaScript code. Actually it's quite uncommon to see such syntax. I guess it's a personal preference of the author.

这样写并不是必须的，但它是有效的 JavaScript 代码。实际上，这种语法很少见。我想这可能是作者的个人偏好。