var global = require('../internals/global');
var userAgent = require('../internals/user-agent');

var process = global.process;
var versions = process && process.versions;
var v8 = versions && versions.v8;
var match, version;

if (v8) {
  match = v8.split('.');
  version = match[0] + match[1];
} else if (userAgent) {
  match = userAgent.match(/Chrome\/(\d+)/);
  if (match) version = match[1];
}

module.exports = version && +version;