无法在 C# 中使用 Selenium WebDriver 执行 JavaScript 命令

Question

I can not execute js command using selenium web driver. for example, I used 3 ways for this URL but all of them return null.

                    web.FindElementByJs("StackExchange.init.length");

                    IJavaScriptExecutor js = (IJavaScriptExecutor)web;
                    string title = (string)js.ExecuteScript("StackExchange.init.length");

                    web.ExecuteJavaScript("StackExchange.init.length");

Answer 1

I get it! For an object, I should use 'window'.

IJavaScriptExecutor js = (IJavaScriptExecutor)web;
string title = (string)js.ExecuteScript("return window.StackExchange.init.length");