Current File : //usr/share/doc/node-commander/examples/options-negatable.js
#!/usr/bin/env node
// This is used as an example in the README for:
// Other option types, negatable boolean
// You can specify a boolean option long name with a leading `no-` to make it true by default and able to be negated.
// const commander = require('commander'); // (normal include)
const commander = require('../'); // include commander in git clone of commander repo
const program = new commander.Command();
program
.option('--no-sauce', 'Remove sauce')
.option('--cheese <flavour>', 'cheese flavour', 'mozzarella')
.option('--no-cheese', 'plain with no cheese');
program.parse();
const options = program.opts();
const sauceStr = options.sauce ? 'sauce' : 'no sauce';
const cheeseStr = (options.cheese === false) ? 'no cheese' : `${options.cheese} cheese`;
console.log(`You ordered a pizza with ${sauceStr} and ${cheeseStr}`);
// Try the following:
// node options-negatable.js
// node options-negatable.js --sauce
// node options-negatable.js --cheese=blue
// node options-negatable.js --no-sauce --no-cheese
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