How to use PageExposeFunctionAsync method of PuppeteerSharp.Tests.PageTests.EvaluateTests class

Best Puppeteer-sharp code snippet using PuppeteerSharp.Tests.PageTests.EvaluateTests.PageExposeFunctionAsync

PageExposeFunctionAsync

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1public async Task PageExposeFunctionAsync()2{3 await Page.ExposeFunctionAsync("compute", (Func<int, int, int>)((a, b) => a * b));4 var result = await Page.EvaluateExpressionAsync("async function() { return await compute(9, 4); }()");5 Assert.AreEqual(36, result);6}7public async Task PageExposeFunctionAsync()8{9 await Page.ExposeFunctionAsync("compute", (Func<int, int, int>)((a, b) => a * b));10 var result = await Page.EvaluateExpressionAsync("async function() { return await compute(9, 4); }()");11 Assert.AreEqual(36, result);12}13public async Task PageExposeFunctionAsync()14{15 await Page.ExposeFunctionAsync("compute", (Func<int, int, int>)((a, b) => a * b));16 var result = await Page.EvaluateExpressionAsync("async function() { return await compute(9, 4); }()");17 Assert.AreEqual(36, result);18}19public async Task PageExposeFunctionAsync()20{21 await Page.ExposeFunctionAsync("compute", (Func<int, int, int>)((a, b) => a * b));22 var result = await Page.EvaluateExpressionAsync("async function() { return await compute(9, 4); }()");23 Assert.AreEqual(36, result);24}25public async Task PageExposeFunctionAsync()26{27 await Page.ExposeFunctionAsync("compute", (Func<int, int, int>)((a, b) => a * b));28 var result = await Page.EvaluateExpressionAsync("async function() { return await compute(9, 4); }()");29 Assert.AreEqual(36, result);30}31public async Task PageExposeFunctionAsync()

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PageExposeFunctionAsync

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1var page = await browser.NewPageAsync();2var result = await page.EvaluateFunctionAsync<string>("() => document.title");3Console.WriteLine(result);4await browser.CloseAsync();5var page = await browser.NewPageAsync();6var result = await page.EvaluateFunctionAsync<string>("() => document.title");7Console.WriteLine(result);8await browser.CloseAsync();9var page = await browser.NewPageAsync();10var result = await page.EvaluateFunctionAsync<string>("() => document.title");11Console.WriteLine(result);12await browser.CloseAsync();13var page = await browser.NewPageAsync();14var result = await page.EvaluateFunctionAsync<string>("() => document.title");15Console.WriteLine(result);16await browser.CloseAsync();17var page = await browser.NewPageAsync();18var result = await page.EvaluateFunctionAsync<string>("() => document.title");19Console.WriteLine(result);20await browser.CloseAsync();21var page = await browser.NewPageAsync();22var result = await page.EvaluateFunctionAsync<string>("() => document.title");23Console.WriteLine(result);24await browser.CloseAsync();25var page = await browser.NewPageAsync();26var result = await page.EvaluateFunctionAsync<string>("() => document.title");27Console.WriteLine(result);28await browser.CloseAsync();

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PageExposeFunctionAsync

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1using System;2using System.Collections.Generic;3using System.Threading.Tasks;4using System.Linq;5using PuppeteerSharp;6using System.IO;7using System.Diagnostics;8{9 {10 [PuppeteerTest("evaluate.spec.ts", "Page.exposeFunctionAsync", "should work")]11 public async Task ShouldWork()12 {13 await Page.ExposeFunctionAsync("woof", (string message) => $"WOOF {message}");14 var result = await Page.EvaluateFunctionAsync<string>("async function() { return await woof('doggo'); }");15 Assert.Equal("WOOF doggo", result);16 }17 [PuppeteerTest("evaluate.spec.ts", "Page.exposeFunctionAsync", "should throw for duplicate registrations")]18 public async Task ShouldThrowForDuplicateRegistrations()19 {20 await Page.ExposeFunctionAsync("woof", (string message) => $"WOOF {message}");21 var exception = await Assert.ThrowsAsync<PuppeteerException>(() => Page.ExposeFunctionAsync("woof", (string message) => $"WOOF {message}"));22 Assert.Equal("Failed to add page.exposeFunction('woof'): window[\"woof\"] already exists", exception.Message);23 }24 [PuppeteerTest("evaluate.spec.ts", "Page.exposeFunctionAsync", "should survive cross-process navigation")]25 public async Task ShouldSurviveCrossProcessNavigation()26 {27 await Page.ExposeFunctionAsync("woof", (string message) => $"WOOF {message}");28 await Page.GoToAsync(TestConstants.EmptyPage);29 var result = await Page.EvaluateFunctionAsync<string>("async function() { return await woof('doggo'); }");30 Assert.Equal("WOOF doggo", result);31 }32 [PuppeteerTest("evaluate.spec.ts", "Page.exposeFunctionAsync", "should throw for conflicting variable assignments")]33 public async Task ShouldThrowForConflictingVariableAssignments()34 {35 await Page.GoToAsync(TestConstants.EmptyPage);36 await Page.EvaluateFunctionAsync("() => { window['Array'] = 100; }");37 var exception = await Assert.ThrowsAsync<PuppeteerException>(() => Page.ExposeFunctionAsync("

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PageExposeFunctionAsync

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1var browser = await Puppeteer.LaunchAsync(new LaunchOptions2{3 Args = new string[] { "--no-sandbox" },4});5var page = await browser.NewPageAsync();6await page.ExposeFunctionAsync("sum", (Func<int, int, int>)((a, b) => a + b));7var result = await page.EvaluateFunctionAsync<int>("async function() { return await sum(1, 2); }");8Console.WriteLine(result);9var browser = await Puppeteer.LaunchAsync(new LaunchOptions10{11 Args = new string[] { "--no-sandbox" },12});13var page = await browser.NewPageAsync();14var result = await page.EvaluateFunctionAsync<int>("() => 7 * 8");15Console.WriteLine(result);16var browser = await Puppeteer.LaunchAsync(new LaunchOptions17{18 Args = new string[] { "--no-sandbox" },19});20var page = await browser.NewPageAsync();21var result = await page.EvaluateFunctionHandleAsync("() => Promise.resolve(8 * 7)");22var json = await result.JsonValueAsync();23Console.WriteLine(json);24var browser = await Puppeteer.LaunchAsync(new LaunchOptions25{26 Args = new string[] { "--no-sandbox" },27});28var page = await browser.NewPageAsync();

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PageExposeFunctionAsync

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1string path = @"C:\Users\user\source\repos\PuppeteerSharp";2Directory.SetCurrentDirectory(path);3string path = @"C:\Users\user\source\repos\PuppeteerSharp";4PageExposeFunctionAsync();5public static void PageExposeFunctionAsync()6{7 PuppeteerSharp.Tests.PageTests.EvaluateTests obj = new PuppeteerSharp.Tests.PageTests.EvaluateTests();8 obj.PageExposeFunctionAsync();9}10string path = @"C:\Users\user\source\repos\PuppeteerSharp";11Directory.SetCurrentDirectory(path);12PageExposeFunctionAsync();13public static void PageExposeFunctionAsync()14{15 PuppeteerSharp.Tests.PageTests.EvaluateTests obj = new PuppeteerSharp.Tests.PageTests.EvaluateTests();16 obj.PageExposeFunctionAsync();17}18string path = @"C:\Users\user\source\repos\PuppeteerSharp";19Directory.SetCurrentDirectory(path);20PageExposeFunctionAsync();21public static void PageExposeFunctionAsync()22{

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PageExposeFunctionAsync

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1var result = await PageExposeFunctionAsync("Hello World");2Console.WriteLine(result);3var result = await PageExposeFunctionAsync("Hello World");4Console.WriteLine(result);5var result = await PageExposeFunctionAsync("Hello World");6Console.WriteLine(result);7var result = await PageExposeFunctionAsync("Hello World");8Console.WriteLine(result);

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