Javascript 如何检测已安装的 Chrome 版本？

How to detect the installed Chrome version?

提问by Skizit

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?

我正在开发 Chrome 扩展程序，我想知道有没有一种方法可以检测用户使用的是哪个版本的 Chrome？

回答by serg

Get major version of Chrome as an integer:

以整数形式获取 Chrome 的主要版本：

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.

我已经更新了原始答案，因此它不会在其他浏览器中引发异常，并且不会使用已弃用的功能。

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

您还可以minimum_chrome_version在清单中设置不允许旧版本的用户安装它。

回答by drmrbrewer

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

这是一个基于@serg 的答案的版本，它提取了版本号的所有元素：

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 thisconvention, though you can of course adapt it to be based on thisinstead.

在返回的对象中的元素的命名是根据这个惯例，虽然你当然可以适应它是基于这个来代替。