优化

‘liusuyi’

2023-08-09 532f7f9dee729c4b720e1afe9566a391db88969b

1
2
3
4
5
var userAgent = require('../internals/engine-user-agent');
 
var firefox = userAgent.match(/firefox\/(\d+)/i);
 
module.exports = !!firefox && +firefox[1];