在ColdFusion中使用带有命名参数的冒号 [英] Using a colon with named arguments in ColdFusion

问题描述

我在一个录音中看到这个代码示例，想知道冒号语法做了什么。我搜索了文档，但我找不到任何信息：

I saw this code example in a recording and wanted to know what the colon syntax did. I searched the docs, but I wasn't able to find any info on it:

weather.subscribe（observer：application.observers.currentConditions ）;

我知道我们可以在CF9中为三元运算符使用冒号：

I know we can use colon in CF9 for ternary operators:

result =（condition）？ true：false;

但在这种情况下，它看起来像是用来提供命名参数;

But in this case it looks like it's being used to provide named arguments; so what's it doing there?

推荐答案

< cfset result = obj .func（arg：value，thing：42）/> 我看着这个，
去了闪烁，闪烁 ...不能！不能对
命名参数使用冒号！呃，你能吗？好吧，显然你可以。

<cfset result = obj.func(arg:value,thing:42) /> I looked at this and went blink, blink... That can't be right! You can't use colons for named arguments! Er, can you? Well, apparently you can.

http://corfield.org/blog/post.cfm/Learn_something_new_every_day_named_arguments

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