Unlock 30% off on Manual Testing Annual Plans this Holiday Season.

Copied to Clipboard!

How to use EvaluateFunctionOnNewDocumentAsync method of PuppeteerSharp.Page class

Best Puppeteer-sharp code snippet using PuppeteerSharp.Page.EvaluateFunctionOnNewDocumentAsync

Index.cshtml.cs

Source:Index.cshtml.cs

...67                    });68                    var page = await browser.NewPageAsync();69                    await page.GoToAsync("https://localhost:5001/VerificationCode/index");70                    await page.EvaluateFunctionHandleAsync("() =>{Object.defineProperty(navigator, 'webdriver', {get: () => false});}");71                    await page.EvaluateFunctionOnNewDocumentAsync("() =>{ window.navigator.chrome = { runtime: {},  }; }");72                    await page.EvaluateFunctionOnNewDocumentAsync("() =>{ Object.defineProperty(navigator, 'languages', { get: () => ['en-US', 'en'] }); }");73                    await page.EvaluateFunctionOnNewDocumentAsync("() =>{ Object.defineProperty(navigator, 'plugins', { get: () => [1, 2, 3, 4, 5,6], }); }");74                    Console.WriteLine(await page.EvaluateExpressionAsync("navigator.webdriver"));75                    var slideBtn = await page.WaitForSelectorAsync("#nc_1_n1t", new WaitForSelectorOptions { Timeout = 3 * 1000 });76                    var rect = await slideBtn.BoundingBoxAsync();77                    var left = rect.X + 10;78                    var top = rect.Y + 10;79                    var mouse = page.Mouse;80                    await mouse.MoveAsync(left, top);81                    await page.Touchscreen.TapAsync(left, top);82                    await mouse.DownAsync();83                    var startTime = DateTime.Now;84                    await mouse.MoveAsync(left + 800, top, new PuppeteerSharp.Input.MoveOptions { Steps = 30 });85                    await page.Touchscreen.TapAsync(left + 800, top);86                    Console.WriteLine(DateTime.Now - startTime);87                    await mouse.UpAsync();...

pay.cshtml.cs

Source:pay.cshtml.cs

...26            });27            var page = await browser.NewPageAsync();28            await page.GoToAsync("https://upay.10010.com/jf_wxgz");29            await page.EvaluateFunctionHandleAsync("() =>{Object.defineProperty(navigator, 'webdriver', {get: () => false});}");30            await page.EvaluateFunctionOnNewDocumentAsync("() =>{ window.navigator.chrome = { runtime: {},  }; }");31            await page.EvaluateFunctionOnNewDocumentAsync("() =>{ Object.defineProperty(navigator, 'languages', { get: () => ['en-US', 'en'] }); }");32            await page.EvaluateFunctionOnNewDocumentAsync("() =>{ Object.defineProperty(navigator, 'plugins', { get: () => [1, 2, 3, 4, 5,6], }); }");33            Console.WriteLine(await page.EvaluateExpressionAsync("navigator.webdriver"));34            //ÌîÐ´ÊÖ»úºÅÂë35            string phone = "13113075869";36            await page.ClickAsync("#number");37            await page.TypeAsync("#number", phone);38            Thread.Sleep(1000);39            //µã»÷³äÖµ°´Å¥40            await page.ClickAsync("#cardlist > section > div.mobile-cardlist.cardlista > a:nth-child(1)");41            ElementHandle slideBtn = null;42            try43            {44                slideBtn = await page.WaitForSelectorAsync("#nc_1_n1t", new WaitForSelectorOptions { Timeout = 3 * 1000 });45            }46            catch (Exception ex)...

Vendor.cs

Source:Vendor.cs

...12        }13        public override async Task OnPageCreated(Page page)14        {15            var script = Utils.GetScript("Vendor.js");16            await page.EvaluateFunctionOnNewDocumentAsync(script, _settings.Vendor);17        }18    }19    public class StealthVendorSettings : IPuppeteerExtraPluginOptions20    {21        public string Vendor { get; }22        public StealthVendorSettings(string vendor)23        {24            Vendor = vendor;25        }26    }27}...

Utils.cs

Source:Utils.cs

...10    {11        public static Task EvaluateOnNewPage(Page page, string script, params object[] args)12        {13            if (!page.IsClosed)14                return page.EvaluateFunctionOnNewDocumentAsync(script, args);15            16            return Task.CompletedTask;17        }18        public static string GetScript(string name)19        {20            var builder = new StringBuilder(typeof(Utils).Namespace);21            builder.Append(".Scripts");22            builder.Append("." + name);23            var file = ResourcesReader.ReadFile(builder.ToString());24            return file;25        }26    }27}...

ConsoleDebugEvasionPlugin.cs

Source:ConsoleDebugEvasionPlugin.cs

...5    {6        public override string Name => "stealth/evasions/console.debug";7        public override async Task OnPageCreatedAsync(Page page)8        {9            await page.EvaluateFunctionOnNewDocumentAsync(@"() => {10              window.console.debug = () => {11                return null12              }13            }");14        }15    }16}...

ChromeRuntimeEvasionPlugin.cs

Source:ChromeRuntimeEvasionPlugin.cs

...5    {6        public override string Name => "stealth/evasions/chrome.runtime";7        public override async Task OnPageCreatedAsync(Page page)8        {9            await page.EvaluateFunctionOnNewDocumentAsync(@"() => {10              window.chrome = {11                runtime: {}12              }13            }");14        }15    }16}...

OutDimensions.cs

Source:OutDimensions.cs

...8        public OutDimensions() : base("stealth-dimensions") { }9        public override async Task OnPageCreated(Page page)10        {11            var script = Utils.GetScript("Outdimensions.js");12            await page.EvaluateFunctionOnNewDocumentAsync(script);13        }14    }15}...

StackTrace.cs

Source:StackTrace.cs

...7        public StackTrace() : base("stealth-stackTrace") { }8        public override async Task OnPageCreated(Page page)9        {10            var script = Utils.GetScript("Stacktrace.js");11            await page.EvaluateFunctionOnNewDocumentAsync(script);12        }13    }14}...

EvaluateFunctionOnNewDocumentAsync

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using PuppeteerSharp;4{5    {6        static async Task Main(string[] args)7        {8            var options = new LaunchOptions { Headless = true };9            using (var browser = await Puppeteer.LaunchAsync(options))10            {11                using (var page = await browser.NewPageAsync())12                {13                    await page.EvaluateFunctionOnNewDocumentAsync(@"() => {14                        Object.defineProperty(navigator, 'webdriver', {15                            get: () => undefined16                        })17                    }");18                    string userAgent = await page.EvaluateExpressionAsync<string>("navigator.userAgent");19                    Console.WriteLine(userAgent);20                }21            }22        }23    }24}25Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/83.0.4103.0 Safari/537.36

EvaluateFunctionOnNewDocumentAsync

Using AI Code Generation

1using System.Threading.Tasks;2using PuppeteerSharp;3{4    {5        static void Main(string[] args)6        {7            MainAsync().GetAwaiter().GetResult();8        }9        static async Task MainAsync()10        {11            await new BrowserFetcher().DownloadAsync(BrowserFetcher.DefaultRevision);12            var browser = await Puppeteer.LaunchAsync(new LaunchOptions13            {14            });15            var page = await browser.NewPageAsync();16            await page.EvaluateFunctionOnNewDocumentAsync(@"() => {17                Object.defineProperty(navigator, 'webdriver', {18                  get: () => false19                })20              }");21            await browser.CloseAsync();22        }23    }24}

EvaluateFunctionOnNewDocumentAsync

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using PuppeteerSharp;4{5    {6        static async Task Main(string[] args)7        {8            await new BrowserFetcher().DownloadAsync(BrowserFetcher.DefaultRevision);9            var browser = await Puppeteer.LaunchAsync(new LaunchOptions10            {11            });12            var page = await browser.NewPageAsync();13            await page.EvaluateFunctionOnNewDocumentAsync(@"() => {14                Object.defineProperty(navigator, 'webdriver', {15                    get: () => false,16                })17            }");18            await page.EvaluateFunctionOnNewDocumentAsync(@"() => {19                window.chrome = {20                    runtime: {},21                };22            }");23            await page.EvaluateFunctionOnNewDocumentAsync(@"() => {24                const originalQuery = window.navigator.permissions.query;25                return window.navigator.permissions.query = (

EvaluateFunctionOnNewDocumentAsync

Using AI Code Generation

1var page = await browser.NewPageAsync();2await page.SetJavaScriptEnabledAsync(true);3await page.EvaluateFunctionOnNewDocumentAsync("() => { window._myInjectedVariable = 1; }");4await page.SetJavaScriptEnabledAsync(true);5await page.EvaluateExpressionAsync("window._myInjectedVariable = 1;");6await page.SetJavaScriptEnabledAsync(true);7await page.EvaluateFunctionAsync("() => { window._myInjectedVariable = 1; }");8await page.SetJavaScriptEnabledAsync(true);9await page.EvaluateExpressionAsync("window._myInjectedVariable = 1;");10var page = await browser.NewPageAsync();11await page.SetJavaScriptEnabledAsync(true);12await page.EvaluateFunctionOnNewDocumentAsync("() => { window._myInjectedVariable = 1; }");13await page.SetJavaScriptEnabledAsync(true);14await page.EvaluateFunctionAsync("() => { window._myInjectedVariable = 1; }");15var page = await browser.NewPageAsync();16await page.SetJavaScriptEnabledAsync(true);17await page.EvaluateFunctionOnNewDocumentAsync("() => { window._myInjectedVariable = 1; }");

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.