代码初始化

jiangping

2025-04-18 4a970f0abce9820dfde9ec3786f411b06eedb8e9

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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];