代码初始化

jiangping

2025-04-25 1e0c8c2a1a3e67cf95a4ccc60012cc3c6dad26be

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