Laravel Mix: How to output separate files rather than a combined one?

var fs = require('fs');
var vueFiles = fs.readdirSync('resources/assets/frontend/js/vue');

for(var i = 0; i < vueFiles.length; i++) {
    mix.js('resources/assets/frontend/js/vue/'+vueFiles[i], 'public/assets/frontend/js/output_vue/output_'+ vueFiles[i]);
}