JScript是否提供三元运算符？ [英] Does JScript Provide a Ternary Operator?

问题描述

Jscript（相对于JavaScript）中是否有三元运算符？如果是这样，语法是什么？

Do we have a ternary operator in Jscript (as opposed to JavaScript)? If so, what is the syntax?

推荐答案

是

expression ? expression : expression

就像C一样。实际上，这有点宽松，因为JavaScript不是强类型的。因此，运算符的两个可能的分叉可以导致不同类型的值。

just like C. It's a little looser, actually, because JavaScript is not strongly-typed. Thus the two possible "forks" of the operator can result in different types of values.

因此：

alert(document.all ? "Hello from IE!" : "Hello from a non-IE browser!");

大多数情况下，Microsoft的ECMAScript与其他浏览器（或其他服务器-端环境）并不是真的那么好，对于普通的非DOM代码，很少要处理这样的事情。

Most of the time, the differences between Microsoft's ECMAScript and those found in other browsers (or other server-side environments) aren't really that great, and for ordinary non-DOM code it's pretty rare to have to deal with such things.

这篇关于JScript是否提供三元运算符？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！