1 var global = require('../internals/global');
2 var userAgent = require('../internals/engine-user-agent');
4 var process = global.process;
5 var Deno = global.Deno;
6 var versions = process && process.versions || Deno && Deno.version;
7 var v8 = versions && versions.v8;
11 match = v8.split('.');
12 // in old Chrome, versions of V8 isn't V8 = Chrome / 10
13 // but their correct versions are not interesting for us
14 version = match[0] > 0 && match[0] < 4 ? 1 : +(match[0] + match[1]);
17 // BrowserFS NodeJS `process` polyfill incorrectly set `.v8` to `0.0`
18 // so check `userAgent` even if `.v8` exists, but 0
19 if (!version && userAgent) {
20 match = userAgent.match(/Edge\/(\d+)/);
21 if (!match || match[1] >= 74) {
22 match = userAgent.match(/Chrome\/(\d+)/);
23 if (match) version = +match[1];
27 module.exports = version;