为什么 Node.js 无法在终端中运行我的 JavaScript 代码？

Question

Can anyone please tell me why my javascript code cannot be executed? What is Uncaught SyntaxError: Unexpected Identifier?

Answer 1

You have a > before your text cursor. This means that you're already in Node .

Right now, what's happening is you're telling Node to run the following JavaScript:

 node index.js

which, of course, is not valid JavaScript.

You need to exit Node so that the standard terminal is displayed, such as cmd or powershell (press Control-C a couple times)

Then you can type in node index.js . If you're in the same directory as the index.js file, it'll execute.