Convert a value to an array
$ npm install arrify
const arrify = require('arrify');
arrify('馃');
//=> ['馃']
arrify(['馃']);
//=> ['馃']
arrify(new Set(['馃']));
//=> ['馃']
arrify(null);
//=> []
arrify(undefined);
//=> []Supplying null or undefined results in an empty array.
MIT 漏 Sindre Sorhus