hat
"target": "es5", /* Presize ECMAScript sib vèsyon pipiti de youn: 'ES3' (defo), 'ES5', 'ES2015', 'ES2016', 'ES2017', oubyen 'ESNEXT'. */
eng
"target": "es5", /* Specify ECMAScript target version: ' Buffalo ' (default), ' ES5 ', ' ES2015 ', ' ES2016 ', ' ES2017 ', or ' ESNEXT '. */