Linux 如何在 Rhino 中输出一些东西？
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How do I output something in Rhino?
提问by Bentley4
I'm looking for the javascript equivalent of Python2.x's print "hi".
I'm working with the Rhino javascript interpreter in the ubuntu terminal.
When I type:
我正在寻找等效于 Python2.x 的 javascript print "hi"。我正在 ubuntu 终端中使用 Rhino javascript 解释器。当我输入：
document.write{"hi"}
I get the error that 'document' is not defined.
我收到未定义“文档”的错误。
采纳答案by Quentin
JavaScript doesn't have any built in methods to provide output. Scripts have to depend on features provided by the host environment for that.
JavaScript 没有任何内置方法来提供输出。脚本必须依赖于宿主环境为此提供的功能。
documentis an object that is available in web browsers, but not in Rhino. Even if it was available, document.writeis a function. You use ()to call a function, not {}.
document是一个在 Web 浏览器中可用的对象，但在 Rhino 中不可用。即使它可用，document.write也是一种功能。你()用来调用一个函数，而不是{}.
Rhino provides a printfunction.
Rhino 提供了一个print功能。
print("hi");
回答by zaf
I don't think you have access to the 'document' object - as the one I think you're referring to is only available when javascript is run in the browser.
我认为您无权访问“文档”对象 - 因为我认为您所指的对象仅在浏览器中运行 javascript 时才可用。
Also, use normal brackets rather than curly brackets to invoke functions.
此外，使用普通括号而不是大括号来调用函数。
Just try:
你试一试：
print('Hello, world!')
