ClosureScript＆NodeJS：错误：No * print

ClosureScript＆NodeJS：错误：No * print-fn * fn设置为评估环境(ClosureScript & NodeJS: Error: No *print-fn* fn set for evaluation environment)

我跟着“你好世界！” 这两个指南中的NodeJS示例

https://github.com/clojure/clojurescript/wiki/Quick-Start#running-clojurescript-on-nodejs http://mmcgrana.github.io/2011/09/clojurescript-nodejs.html

并为每个我得到这个错误

Error: No *print-fn* fn set for evaluation environment

我错过了一个步骤？ 这似乎是一个相当基本的问题......有谁知道print-fn在哪里设置？

I have followed the "hello world!" examples for NodeJS on both these guides

https://github.com/clojure/clojurescript/wiki/Quick-Start#running-clojurescript-on-nodejs http://mmcgrana.github.io/2011/09/clojurescript-nodejs.html

and for each I get this error

Error: No *print-fn* fn set for evaluation environment

Have I missed a step? This seems like a fairly basic problem ... does anyone know where print-fn is set?

最满意答案

你可以说

(enable-console-print!)

使用console.log进行打印。

在引擎盖下， enable-console-print! 设置*print-newline*和*print-fn* 。 这是r2156 的来源 。

You can say

(enable-console-print!)

to print using console.log.

Under the hood, enable-console-print! sets *print-newline* and *print-fn*. Here's the source as of r2156.