How to detect the installed Chrome version?

I'm developing a Chrome extension and I'm wondering is there a way that I can detect which version of Chrome the user is using?

Get major version of Chrome as an integer:

function getChromeVersion () {     
    var raw = navigator.userAgent.match(/Chrom(e|ium)\/([0-9]+)\./);

    return raw ? parseInt(raw[2], 10) : false;
}

I've updated the original answer, so that it does not throw an exception in other browsers, and does not use deprecated features.

You can also set minimum_chrome_version in the manifest to not let users with older versions install it.

Here is a version, based on the answer from @serg, that extracts all of the elements of the version number:

function getChromeVersion () {
	var pieces = navigator.userAgent.match(/Chrom(?:e|ium)\/([0-9]+)\.([0-9]+)\.([0-9]+)\.([0-9]+)/);
	if (pieces == null || pieces.length != 5) {
		return undefined;
	}
	pieces = pieces.map(piece => parseInt(piece, 10));
	return {
		major: pieces[1],
		minor: pieces[2],
		build: pieces[3],
		patch: pieces[4]
	};
}

The naming of the elements in the object that is returned is based on this convention, though you can of course adapt it to be based on this instead.

Alternative modern solution can be just check the navigator.userAgentData.brands

E.g.:

Boolean(navigator.userAgentData?.brands.find(({ brand, version }) => brand === 'Chromium' && parseFloat(version, 10) >= 93))