我听说过Javascript insert&quot ;;"自动，这可能会导致问题 [英] I've heard Javascript inserts ";" automatically and that may cause problems

问题描述

我也听说Go也插入了它们，但它们跟着另一个方法

I've also heard that Go insert them too, but they followed a different approach

Javascript如何在解释时插入分号？

How does Javascript insert semicolons while interpreting?

推荐答案

我发现的最重要的事情之一是，假设你有一个函数可以返回坐标（或任何对象真的），类似于此。

One of the biggest things I've found is, let's say you have a function that returns coordinates (or any object really), similar to this.

function getCoordinates() {
    return
        {
            x: 10,
            y: 10
        };
}

你会期望找回一个对象吗？错误！你回来了未定义。解释器将代码转换为此

You would expect to get back an object right? WRONG! You get back undefined. The interpreter converts the code into this

function getCoordinates() {
    return;
        {
            x: 10,
            y: 10
        };
}

由于返回 by本身是一个有效的声明。你需要确保按以下方式写回报

Since return by itself is a valid statement. You need to be sure to write the return as follows

function getCoordinates() {
    return {
            x: 10,
            y: 10
        };
}

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