TestCefeとかで引数を使う

package.jsopnでは

"e2e": "testcafe chrome ./test/*-test.js",

コマンド

yarn comman --hoge bar

ソースはこう

import _ from 'lodash';

/**
 * ["chrome:headless","./test/hoge-test.js","./test/hoge-test.js","--hoge","bar","--fuga","hogehoge"]
 * を {'hoge': 'bar', 'fuga': 'hogehoge'} に変換
 * それからキーをもとに取得
 *
 * @param {*} regex
 */
const getParam = key => {
  const args = process.argv.slice(2);
  const MY_ENV = _.reduce(args, (result, item, key) => {
    if(item.includes('--')) {
      result[item.replace('--', '')] = args[key + 1];
    }

    return result;
  }, {});

  if (_.isNil(MY_ENV)) {
    return null;
  }
  
  return MY_ENV[key];
}