Run function in script from command line (Node JS) using ES6 Modules

Question

I just want to be able to run a specific function inside of a JS File ES6 Modules with Node.JS from the command line...

For example, I have a file called schedules.js which has the following function

export function name(params) {
  console.log('Hello World');
}

I want to be able to run that function by typing the following command in the command line:

node schedules.js name

The way I am trying to run that now, I just get nothing from as output

DecPK · Accepted Answer · 2021-11-07 00:06:22Z

4

You can use command line arguments. For getting command line arguments you can use process.argv. Maybe you can change your program something like that:

function name(params) {
  console.log("Hello World");
}
if (process.argv[2] === "name") {
  name("");
}

Now when you write "node schedules.js name" to your terminal your function will be called.

edited Nov 7, 2021 at 0:06

DecPK

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answered Nov 7, 2021 at 0:03

fırat dede

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1 Comment

Chris A Over a year ago

Just wanted to add that if you were doing this as a debug config in VSCode, your launch.json would look something like { "type": "node", "program": "${workspaceFolder}\\schedules.js", "args": ["name"] }

Andy · Accepted Answer · 2021-11-07 00:18:13Z

0

You don't need to export your function from the module. Just have nodeJs run the function but make sure you call your function in that module with the process.argv arguments that you pass in to it.

function schedules(name) {
  return name;
}

const name = process.argv[2];

console.log(schedules(name));

node schedules.js Lucas

answered Nov 7, 2021 at 0:18

Andy

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