How do I pass a nested array of numbers as a command-line argument to a Node.js program and get is as an Array?

Question

The problem is that when you pass a command-line argument is passed as a string.

So when I run this node index.js [[1,2],[2,3]]

I am getting that in the process.argv

[
  '/Users/user/.nvm/versions/node/v12.13.0/bin/node',
  '/Users/user/node/index.js',
  '[[1,2],[2,3]]'
]

I can make a parser for that but I am trying to avoid that.

Is there a way to do that or I am abusing the arguments?

Marcos Casagrande · Accepted Answer · 2020-04-23 12:25:25Z

4

Arguments are passed as string, so you can't avoid it. You don't need to make a parser since that's a valid JSON

const arr = JSON.parse(process.argv[2])

answered Apr 23, 2020 at 12:15

Marcos Casagrande

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