running npm task in parallel

Question

I'm trying to write an example of running npm tasks in parallel. We are supposed to be able to do this with "&" for parallel and "&&" for series.

{
  "name": "npm",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "scripts": {
    "console": "node ./npm-scripts/console.js",
    "task1": "node ./npm-scripts/task1.js",
    "task2": "node ./npm-scripts/task2.js",
    "task3": "node ./npm-scripts/task3.js",
    "parallel": "npm run task1 & npm run task2 & npm run task3",
    "series": "npm run task1 && npm run task2 && npm run task3"
  },
  "author": "",
  "license": "ISC",
  "devDependencies": {
    "date-and-time": "^0.3.0"
  }
}

This doesn't seem to actually work.

Here is where my code is. I'm using Visual Studio 2015 but if you know NPM then you can just use the command line.

my github parallel and series examples

Thanks in advance for any help.

Bob

Possible duplicate of How can I run multiple NPM scripts in parallel? — James Choi
– James Choi, Commented Feb 24, 2016 at 4:56

mysticatea · Accepted Answer · 2016-02-24 09:11:54Z

On Windows, we cannot use & to run tasks in parallel.

npm-run-all is useful in this case, IMO.

{
    "name": "npm",
    "version": "1.0.0",
    "description": "",
    "main": "index.js",
    "scripts": {
        "console": "node ./npm-scripts/console.js",
        "task1": "node ./npm-scripts/task1.js",
        "task2": "node ./npm-scripts/task2.js",
        "task3": "node ./npm-scripts/task3.js",
        "parallel": "npm-run-all --parallel task1 task2 task3",
        "series": "npm-run-all task1 task2 task3"
    },
    "author": "",
    "license": "ISC",
    "devDependencies": {
        "date-and-time": "^0.3.0",
        "npm-run-all": "^1.5.1"
    }
}

We can use glob-like pattern to specify tasks:

        "parallel": "npm-run-all --parallel task{1,2,3}",
        "series": "npm-run-all task{1,2,3}"

Collectives™ on Stack Overflow

running npm task in parallel

1 Answer 1

Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related