basant307/AI_Governance_Project

1'use strict';2 3// This is an example of using tokens to add a custom behaviour.4//5// Throw an error if an option is used more than once.6 7// 1. const { parseArgs } = require('node:util'); // from node8// 2. const { parseArgs } = require('@pkgjs/parseargs'); // from package9const { parseArgs } = require('..'); // in repo10 11const options = {12  ding: { type: 'boolean', short: 'd' },13  beep: { type: 'boolean', short: 'b' }14};15const { values, tokens } = parseArgs({ options, tokens: true });16 17const seenBefore = new Set();18tokens.forEach((token) => {19  if (token.kind !== 'option') return;20  if (seenBefore.has(token.name)) {21    throw new Error(`option '${token.name}' used multiple times`);22  }23  seenBefore.add(token.name);24});25 26console.log(values);27 28// Try the following:29//    node no-repeated-options --ding --beep30//    node no-repeated-options --beep -b31//    node no-repeated-options -ddd32