如何通过终端运行 JavaScript 脚本？
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How do you run JavaScript script through the Terminal?
提问by BLUC
For instance, if you were to run a Python script you would type python filename.pyor if you wanted to run a C program make filenamethen ./ filename. How do you do this with .jsfiles?
例如，如果您要运行 Python 脚本，则应键入python filename.py ，或者如果要运行 C 程序make filename则./ filename。你如何用.js文件做到这一点？
采纳答案by Andrzej Doyle
You would need a JavaScript engine (such as Mozilla's Rhino) in order to evaluate the script - exactly as you do for Python, though the latter ships with the standard distribution.
您需要一个 JavaScript 引擎（例如Mozilla 的 Rhino）来评估脚本 - 与您对 Python 所做的完全一样，尽管后者随标准发行版一起提供。
If you have Rhino (or alternative) installed and on your path, then running JS can indeed be as simple as
如果你在你的路径上安装了 Rhino（或替代），那么运行 JS 确实可以像
> rhino filename.js
It's worth noting though that while JavaScript is simply a language in its own right, a lot of particular scripts assume that they'll be executing in a browser-like environment - and so try to access global variables such as location.href, and create output by appending DOM objects rather than calling print.
值得注意的是，虽然 JavaScript 本身就是一种语言，但许多特定的脚本假定它们将在类似浏览器的环境中执行 - 因此尝试访问全局变量，例如location.href, 并通过附加来创建输出DOM 对象而不是调用print.
If you've got hold of a script which was written for a web page, you may need to wrap or modify it somewhat to allow it to accept arguments from stdin and write to stdout. (I believe Rhino has a mode to emulate standard browser global vars which helps a lot, though I can't find the docs for this now.)
如果您掌握了为网页编写的脚本，则可能需要对其进行一些包装或修改，以允许它接受来自标准输入的参数并写入标准输出。（我相信 Rhino 有一种模拟标准浏览器全局变量的模式，这很有帮助，尽管我现在找不到这方面的文档。）
回答by Ionic? Biz?u
Another answer would be the NodeJS!
另一个答案是 NodeJS！
Node.js is a platform built on Chrome's JavaScript runtime for easily building fast, scalable network applications. Node.js uses an event-driven, non-blocking I/O model that makes it lightweight and efficient, perfect for data-intensive real-time applications that run across distributed devices.
Node.js 是一个基于 Chrome 的 JavaScript 运行时构建的平台，用于轻松构建快速、可扩展的网络应用程序。Node.js 使用事件驱动的非阻塞 I/O 模型，使其轻量级和高效，非常适合跨分布式设备运行的数据密集型实时应用程序。
Using terminal you will be able to start it using nodecommand.
使用终端，您将能够使用node命令启动它。
$ node
> 2 + 4
6
>
Note: If you want to exit just type
注意：如果你想退出只需输入
.exit
You can also run a JavaScript file like this:
您还可以像这样运行 JavaScript 文件：
node file.js
回答by microspino
If you have a Macyou can get jsca javascript console in OS X (Terminal) by typing
如果您有Mac，则可以jsc通过键入在 OS X（终端）中获得javascript 控制台
/System/Library/Frameworks/JavaScriptCore.framework/Versions/Current/Resources/jsc
in Terminal.app.
在Terminal.app 中。
You could also run one of your .js script by adding its name as an argument for jsc, like this:
您还可以通过将其名称添加为 jsc 的参数来运行您的 .js 脚本之一，如下所示：
jsc your_awesome_script_name.js
Notice: I use console.log()during development but jsc needs the debug()function instead.
注意：我console.log()在开发过程中使用但 jsc 需要该debug()功能。
On Ubuntuyou have some nice ECMAScript shellsat your disposal. Between them it's worth to mention SpiderMonkey. You can add It by sudo apt-get install spidermonkey
在Ubuntu 上，您可以使用一些不错的ECMAScript shell。在他们之间，值得一提的是SpiderMonkey。你可以添加它sudo apt-get install spidermonkey
On Windowsas other people said you can rely on cscriptand wscriptdirectly built on the OS.
在Windows 上，正如其他人所说，您可以依赖cscript并wscript直接构建在操作系统上。
I would add also another :) way of thinking to the problem, if you have time and like to learn new things i'd like to mention coffee-scriptthat has its own compiler/console and gives you super-correct Javascript out. You can try it also on your browser (link "try coffeescript").
我还要添加另一种 :)对问题的思考方式，如果您有时间并想学习新事物，我想提及具有自己的编译器/控制台并为您提供超级正确的 Javascript 的咖啡脚本。您也可以在浏览器上尝试（链接“尝试咖啡脚本”）。
回答by Andrey Bodoev
Use node.js for that, here is example how to install nodeby using brewon mac:
为此使用 node.js，这里是如何在 mac 上node使用安装的示例brew：
brew update && install node
Then run your program by typing node filename.js, and you can use console.log()for output.
然后通过键入运行您的程序node filename.js，您可以将其console.log()用于输出。
回答by Mark Lakata
It is crude, but you can open up the Javascript console in Chrome (Ctrl+Shift+J) and paste the text contents of the *.js file and hit Enter.
它很粗糙，但您可以在 Chrome 中打开 Javascript 控制台（Ctrl+Shift+J）并粘贴 *.js 文件的文本内容，然后按 Enter。
回答by Emjey
If you're using MacBook.
如果您使用的是 MacBook。
- Set up
node.jsin your system and open up the terminal - Navigate to the directory, where the js file is saved.
- To execute run
node <filename.js>
node.js在您的系统中设置并打开终端- 导航到保存 js 文件的目录。
- 执行运行
node <filename.js>
example, if filename is script.jsrun node script.js
例如，如果script.js运行文件名node script.js
回答by fscof
Alternatively, if you're just looking to play around with Javascript a nice in browser option is Codecademy'sJavascript Lab.
或者，如果您只是想使用 Javascript，那么Codecademy 的Javascript 实验室是一个不错的浏览器选项。
They also have a Python and Ruby IDE.
他们还有一个 Python 和 Ruby IDE。
回答by raf
I tried researching that too but instead ended up using jsconsole.comby Remy Sharp (he also created jsbin.com). I'm running on Ubuntu 12.10 so I had to create a special iconbut if you're on Windows and use Chrome simply go to Tools>Create Application Shortcuts (note this doesn't work very well, or at all in my case, on Ubuntu). This site works very like the Mac jscconsole: actually it has some cool features too (like loading libraries/code from a URL) that I guess jscdoes not.
我也尝试过研究，但最终使用了 Remy Sharp 的jsconsole.com（他还创建了 jsbin.com）。我在 Ubuntu 12.10 上运行，所以我必须创建一个特殊的图标，但如果您使用的是 Windows 并使用 Chrome，只需转到工具>创建应用程序快捷方式（注意这不太好用，或者在我的情况下根本不起作用，在 Ubuntu 上）。这个站点的工作方式非常像 Macjsc控制台：实际上它也有一些很酷的功能（比如从 URL 加载库/代码），我猜jsc没有。
Hope this helps.
希望这可以帮助。
回答by Anders Tornblad
If you are on a Windows PC, you can use WScript.exe or CScript.exe
如果您使用的是 Windows PC，则可以使用 WScript.exe 或 CScript.exe
Just keep in mind that you are not in a browser environment, so stuff like document.writeor anything that relies on the windowobject will not work, like window.alert. Instead, you can call WScript.Echoto output stuff to the prompt.
请记住，你是不是在浏览器环境，所以喜欢的东西document.write或任何依赖上的window物体将无法正常工作，喜欢window.alert。相反，您可以调用WScript.Echo将内容输出到提示。
http://msdn.microsoft.com/en-us/library/9bbdkx3k(VS.85).aspx
http://msdn.microsoft.com/en-us/library/9bbdkx3k(VS.85).aspx
回答by Keith Cascio
On Ubuntu, install 
libjavascriptcoregtk-3.0-binand use /usr/bin/jsc(manpage).
在 Ubuntu 上，安装libjavascriptcoregtk-3.0-bin并使用( manpage)。/usr/bin/jsc
