selenium clear input for sure

ClearExtensions.cs

        public static void ClearForChrome(this IWebElement webElement)
        {
            webElement.Click();
            
            if (!string.IsNullOrEmpty(webElement.GetAttribute("value")))
            {
                if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
                {
                    webElement.SendKeys(Keys.Control + 'a');
                }
                else if(RuntimeInformation.IsOSPlatform(OSPlatform.OSX))
                {
                    RemoteWebElement remoteWebElement = (RemoteWebElement)webElement;
                    IJavaScriptExecutor javaScriptExecutor = (IJavaScriptExecutor)remoteWebElement.WrappedDriver;

                    // cant use ctrl + a on mac https://bugs.chromium.org/p/chromedriver/issues/detail?id=30#c13
                    javaScriptExecutor.ExecuteScript("arguments[0].select();", webElement);
                }
                
                webElement.SendKeys(Keys.Delete);
            }
            if (!string.IsNullOrEmpty(webElement.GetAttribute("value")))
            {
                for (int i = 0; i < 2; i++)
                {
                    var existingValue = webElement.GetAttribute("value");
                    webElement.SendKeys(Keys.End);
                    for (int c = 0; c < existingValue.Length; c++)
                    {
                        webElement.SendKeys(Keys.Backspace);
                        webElement.SendKeys(Keys.Delete);
                        Thread.Sleep(20);
                    }
                }
            }
        }