在JavaScript中切换语句多个案例 [英] Switch statement multiple cases in JavaScript

问题描述

我在JavaScript中的switch语句中需要多个案例，例如：

I need multiple cases in switch statement in JavaScript, Something like:

switch (varName)
{
   case "afshin", "saeed", "larry": 
       alert('Hey');
       break;

   default: 
       alert('Default case');
       break;
}

我该怎么做？如果在JavaScript中没有办法做类似的事情，我想知道一个替代解决方案，也遵循 DRY概念。

How can I do that? If there's no way to do something like that in JavaScript, I want to know an alternative solution that also follows DRY concept.

推荐答案

使用开关的防坠落功能声明。一个匹配的大小写将一直运行，直到找到 break （或 switch 语句的结尾），所以你可以写它喜欢：

Use the fall-through feature of the switch statement. A matched case will run until a break (or the end of the switch statement) is found, so you could write it like:

switch (varName)
{
   case "afshin":
   case "saeed":
   case "larry": 
       alert('Hey');
       break;

   default: 
       alert('Default case');
}

这篇关于在JavaScript中切换语句多个案例的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！