CLI Tools Part 2: Argument Parsing

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Choosing a Parser

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Popular Options

• commander.js
• yargs
• meow

Commander.js Setup

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import { program } from 'commander';

program
  .name('my-cli')
  .version('1.0.0')
  .description('A sample CLI');

Adding Commands

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program
  .command('init')
  .description('Initialize a new project')
  .action(() => {
    console.log('Initializing...');
  });

Options and Flags

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Boolean Flags

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Value Options

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Next Steps

Part 3 covers interactive prompts.