How to use PuppeteerHandleExtensions class of PuppeteerSharp package

Best Puppeteer-sharp code snippet using PuppeteerSharp.PuppeteerHandleExtensions

Page.cs

Source:Page.cs

...441        /// <seealso cref="Frame.QuerySelectorAllAsync(string)"/>442        public Task<ElementHandle[]> QuerySelectorAllAsync(string selector)443            => MainFrame.QuerySelectorAllAsync(selector);444        /// <summary>445        /// A utility function to be used with <see cref="PuppeteerHandleExtensions.EvaluateFunctionAsync{T}(Task{JSHandle}, string, object[])"/>446        /// </summary>447        /// <param name="selector">A selector to query page for</param>448        /// <returns>Task which resolves to a <see cref="JSHandle"/> of <c>document.querySelectorAll</c> result</returns>449        public Task<JSHandle> QuerySelectorAllHandleAsync(string selector)450            => EvaluateFunctionHandleAsync("selector => Array.from(document.querySelectorAll(selector))", selector);451        /// <summary>452        /// Evaluates the XPath expression453        /// </summary>454        /// <param name="expression">Expression to evaluate <see href="https://developer.mozilla.org/en-US/docs/Web/API/Document/evaluate"/></param>455        /// <returns>Task which resolves to an array of <see cref="ElementHandle"/></returns>456        /// <remarks>457        /// Shortcut for <c>page.MainFrame.XPathAsync(expression)</c>458        /// </remarks>459        /// <seealso cref="Frame.XPathAsync(string)"/>...

ElementHandle.cs

Source:ElementHandle.cs

...331            await arrayHandle.DisposeAsync().ConfigureAwait(false);332            return properties.Values.OfType<ElementHandle>().ToArray();333        }334        /// <summary>335        /// A utility function to be used with <see cref="PuppeteerHandleExtensions.EvaluateFunctionAsync{T}(Task{JSHandle}, string, object[])"/>336        /// </summary>337        /// <param name="selector">A selector to query element for</param>338        /// <returns>Task which resolves to a <see cref="JSHandle"/> of <c>document.querySelectorAll</c> result</returns>339        public Task<JSHandle> QuerySelectorAllHandleAsync(string selector)340            => ExecutionContext.EvaluateFunctionHandleAsync(341                "(element, selector) => Array.from(element.querySelectorAll(selector))", this, selector);342        /// <summary>343        /// Evaluates the XPath expression relative to the elementHandle. If there's no such element, the method will resolve to <c>null</c>.344        /// </summary>345        /// <param name="expression">Expression to evaluate <see href="https://developer.mozilla.org/en-US/docs/Web/API/Document/evaluate"/></param>346        /// <returns>Task which resolves to an array of <see cref="ElementHandle"/></returns>347        public async Task<ElementHandle[]> XPathAsync(string expression)348        {349            var arrayHandle = await ExecutionContext.EvaluateFunctionHandleAsync(...

PuppeteerHandleExtensions.cs

Source:PuppeteerHandleExtensions.cs

...4{5    /// <summary>6    /// <see cref="JSHandle"/> and <see cref="ElementHandle"/> Extensions.7    /// </summary>8    public static class PuppeteerHandleExtensions9    {10        /// <summary>11        /// Runs <paramref name="pageFunction"/> within the frame and passes it the outcome of <paramref name="elementHandleTask"/> as the first argument12        /// </summary>13        /// <param name="elementHandleTask">A task that returns an <see cref="ElementHandle"/> that will be used as the first argument in <paramref name="pageFunction"/></param>14        /// <param name="pageFunction">Function to be evaluated in browser context</param>15        /// <param name="args">Arguments to pass to <c>pageFunction</c></param>16        /// <returns>Task</returns>17        /// <exception cref="SelectorException">If <paramref name="elementHandleTask"/> resolves to <c>null</c></exception>18        public static Task EvaluateFunctionAsync(this Task<ElementHandle> elementHandleTask, string pageFunction, params object[] args)19            => elementHandleTask.EvaluateFunctionAsync<object>(pageFunction, args);20        /// <summary>21        /// Runs <paramref name="pageFunction"/> within the frame and passes it the outcome of <paramref name="elementHandleTask"/> as the first argument22        /// </summary>...

SelectorException.cs

Source:SelectorException.cs

...4{5    /// <summary>6    /// Exception thrown when an element selector returns null.7    /// </summary>8    /// <seealso cref="PuppeteerHandleExtensions.EvaluateFunctionAsync{T}(System.Threading.Tasks.Task{ElementHandle}, string, object[])"/>9    /// <seealso cref="Frame.SelectAsync(string, string[])"/>10    /// <seealso cref="Page.ClickAsync(string, Input.ClickOptions)"/>11    /// <seealso cref="Page.TapAsync(string)"/>12    /// <seealso cref="Page.HoverAsync(string)"/>13    /// <seealso cref="Page.FocusAsync(string)"/>14    /// <seealso cref="Page.SelectAsync(string, string[])"/>15    [Serializable]16    public class SelectorException : PuppeteerException17    {18        /// <summary>19        /// Initializes a new instance of the <see cref="SelectorException"/> class.20        /// </summary>21        public SelectorException()22        {...

PuppeteerHandleExtensions

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 LaunchOptions { Headless = false });10            var page = await browser.NewPageAsync();11            await page.ScreenshotAsync("google.png");12            await browser.CloseAsync();13        }14    }15}16using System;17using System.Threading.Tasks;18using PuppeteerSharp;19{20    {21        static async Task Main(string[] args)22        {23            await new BrowserFetcher().DownloadAsync(BrowserFetcher.DefaultRevision);24            var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = false });25            var page = await browser.NewPageAsync();26            await page.ScreenshotAsync("google.png");27            await browser.CloseAsync();28        }29    }30}31using System;32using System.Threading.Tasks;33using PuppeteerSharp;34{35    {36        static async Task Main(string[] args)37        {38            await new BrowserFetcher().DownloadAsync(BrowserFetcher.DefaultRevision);39            var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = false });40            var page = await browser.NewPageAsync();41            await page.ScreenshotAsync("google.png");42            await browser.CloseAsync();43        }44    }45}46using System;47using System.Threading.Tasks;48using PuppeteerSharp;49{50    {51        static async Task Main(string[] args)52        {53            await new BrowserFetcher().DownloadAsync(BrowserFetcher.DefaultRevision);54            var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = false });55            var page = await browser.NewPageAsync();

PuppeteerHandleExtensions

Using AI Code Generation

1using PuppeteerSharp;2using System;3using System.Threading.Tasks;4{5    {6        static async Task Main(string[] args)7        {8            var browser = await Puppeteer.LaunchAsync(new LaunchOptions9            {10                ExecutablePath = @"C:\Program Files (x86)\Google\Chrome\Application\chrome.exe"11            });12            var page = await browser.NewPageAsync();13            await page.ScreenshotAsync("google.png");14            await browser.CloseAsync();15        }16    }17}18I am trying to use the PuppeteerSharp package in my C# project. I am using .Net Core 2.2. I am using the following code to launch the browser and take a screenshot of google.com. I am getting the following error: Error CS0246: The type or namespace name 'PuppeteerSharp' could not be found (are you missing a using directive or an assembly reference?)I have installed the package using the following command:Install-Package PuppeteerSharp -Version 1.18.0I have also tried installing the package using the NuGet Package Manager in Visual Studio 2017. I am getting the same error. What am I doing wrong?I am using Windows 10. I am using the following code to launch the browser and take a screenshot of google.com:

PuppeteerHandleExtensions

Using AI Code Generation

1using System;2using System.IO;3using System.Threading.Tasks;4using PuppeteerSharp;5{6    {7        static async Task Main(string[] args)8        {9            var browser = await Puppeteer.LaunchAsync(new LaunchOptions10            {11            });12            var page = await browser.NewPageAsync();13            await page.ScreenshotAsync(Path.Combine(Directory.GetCurrentDirectory(), "google.png"));14            await browser.CloseAsync();15        }16    }17}

PuppeteerHandleExtensions

Using AI Code Generation

1using PuppeteerSharp;2using System;3using System.Threading.Tasks;4using PuppeteerSharp.Helpers;5{6    {7        public static async Task<string> GetInnerTextAsync(this ElementHandle handle)8        {9            var element = await handle.EvaluateFunctionHandleAsync("e => e", handle);10            var textContent = await element.GetPropertyAsync("textContent");11            return await textContent.JsonValueAsync<string>();12        }13    }14}

PuppeteerHandleExtensions

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using PuppeteerSharp;4{5    {6        static async Task Main(string[] args)7        {8            var browser = await Puppeteer.LaunchAsync(new LaunchOptions9            {10            });11            var page = await browser.NewPageAsync();12            await page.ScreenshotAsync("google.png");

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