前端

jiangping

2025-07-09 c11680cb9911cd00084c99c75099e571be2a08d1

1
2
3
4
5
6
'use strict';
var userAgent = require('../internals/environment-user-agent');
 
var firefox = userAgent.match(/firefox\/(\d+)/i);
 
module.exports = !!firefox && +firefox[1];