代码初始化

jiangping

2025-04-21 c92ef51676efa03d41c1cf7b94f4077d58a7babd

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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];