How to execute a hello world javascript file in no

问题:

I have hello_world.js file located on my computer at the following location -

C:\Users\Ankur\Downloads\NodeJS\working

It has the following code-

console.log("Hellow World");

I was reading a beginners tutorial here and it says I should execute my javascript file through node.js. Now I have no idea what to do. How would I do this.

When I do this ...

I get nothing. What should I be doing to run the hello world successfully. None of the tutorials seem to be showing what needs to be done.

I am very new to this so it is probably something that is very obvious to you guys.

回答1:

Use Node.js command prompt, then type in node C:\Users\Ankur\Downloads\NodeJS\working\hello_world.js

回答2:

looks like you are in a node console already. you typed node which correctly started node (so your path is fine). Now you are telling node to interpret

node C:\Users\Ankur\Downloads\NodeJS\working\hello_world.js

as javascript which it doesn't like.

You should be able to type console.log('hello world'); here and see it appear.

To run your file, quit out of the node interpreter (i think control-X, maybe control-C), and at your C:> prompt, THEN type

node C:\Users\Ankur\Downloads\NodeJS\working\hello_world.js

Alternately,

cd C:\Users\Ankur\Downloads\NodeJS\working\
node hello_world.js

回答3:

You have entered the node console, by typing node into a command prompt, and then tried to execute node from within itself. Just type node c:\etc\...\ from the command prompt, not the node shell.

Press: [Start]->[Run]->[c][m][d]

And enter command: node C:\Users\Ankur\Downloads\NodeJS\working\hello_world.js

Alternatively, use sublime editor, and install a node js build system, and just open the file you want to run, and press the build shortcut, getting the output in the console.

回答4:

1. Open CMD.
2. Type "cd C:\Users\Ankur\Downloads\NodeJS\working" and hit Enter
3. Type "node hello_world.js" and hit Enter

This should work out !! IMPORTANT: Dont type node before the point number 3.

回答5:

Follow these three easy steps:

• Go to your working directory

  C:\Users\Ankur\Downloads\NodeJS\working 
  

• Open cmd there and type

  node hello_world
  

• Press Enter

回答6:

Open Windows cmd and type

node C:\Users\Ankur\Downloads\NodeJS\working\hello_world.js

You should use node from system interpreter (bash/DOS cmd), what you are running is C:\Program Files\nodejs\node.exe without any arguments.

回答7:

Alternative. Open Nodejs "The thing with a green icon". Copy the code that you would like to be executed from the file that you have

paste it in nodejs then press enter

nodejs understands js code so it will execute what you have written and output hello world undefined

What you have descripbed opens the file that you have and then executes it.