const concurrently = require('concurrently'); const port = process.env.PORT || 4200; concurrently([ { command: 'node scripts/pug-watch.js', name: 'PUG_WATCH', prefixColor: 'bgGreen.bold' }, { command: `npm run ng -- serve --port ${port} --open`, name: 'NG_SERVE', prefixColor: 'bgBlue.bold', } ], { prefix: 'name', killOthers: ['failure', 'success'], }).then(success, failure); function success() { console.log('Success'); } function failure() { console.log('Failure'); }