js判断webview内核

function detectWebViewEngine() {
    var userAgent = navigator.userAgent;
    var engineDetails = userAgent.match(/(webkit|blink|gecko|trident|edge)\/?\s*(\.?\d+(\.\d+)*)/i);

    if (engineDetails) {
        var engineName = engineDetails[1].toLowerCase();
        var engineVersion = engineDetails[2];

        switch(engineName) {
            case 'webkit':
                return 'WebKit ' + engineVersion;
            case 'blink':
                return 'Blink ' + engineVersion;
            case 'gecko':
                return 'Gecko ' + engineVersion;
            case 'trident':
                return 'Trident ' + engineVersion;
            case 'edge':
                return 'EdgeHTML ' + engineVersion;
            default:
                return 'Unknown';
        }
    } else {
        return 'Unable to detect WebView engine';
    }
}

console.log(detectWebViewEngine());