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28 lines
850 B
28 lines
850 B
3 years ago
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var global = require('../internals/global');
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var userAgent = require('../internals/engine-user-agent');
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var process = global.process;
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var Deno = global.Deno;
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var versions = process && process.versions || Deno && Deno.version;
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var v8 = versions && versions.v8;
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var match, version;
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if (v8) {
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match = v8.split('.');
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// in old Chrome, versions of V8 isn't V8 = Chrome / 10
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// but their correct versions are not interesting for us
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version = match[0] > 0 && match[0] < 4 ? 1 : +(match[0] + match[1]);
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}
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// BrowserFS NodeJS `process` polyfill incorrectly set `.v8` to `0.0`
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// so check `userAgent` even if `.v8` exists, but 0
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if (!version && userAgent) {
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match = userAgent.match(/Edge\/(\d+)/);
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if (!match || match[1] >= 74) {
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match = userAgent.match(/Chrome\/(\d+)/);
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if (match) version = +match[1];
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}
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}
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module.exports = version;
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