KaneAI - World’s First E2E Software Testing Agent.Book a Demo Join TestMu Conference

How to use JsonValueAsync method of Microsoft.Playwright.Core.JSHandle class

Best Playwright-dotnet code snippet using Microsoft.Playwright.Core.JSHandle.JsonValueAsync

JSHandle.cs

Source:JSHandle.cs

...52        public async Task<T> EvaluateAsync<T>(string expression, object arg = null)53            => ScriptsHelper.ParseEvaluateResult<T>(await _channel.EvaluateExpressionAsync(54                script: expression,55                arg: ScriptsHelper.SerializedArgument(arg)).ConfigureAwait(false));56        public async Task<T> JsonValueAsync<T>() => ScriptsHelper.ParseEvaluateResult<T>(await _channel.JsonValueAsync().ConfigureAwait(false));57        public async Task<IJSHandle> GetPropertyAsync(string propertyName) => (await _channel.GetPropertyAsync(propertyName).ConfigureAwait(false))?.Object;58        public async Task<Dictionary<string, IJSHandle>> GetPropertiesAsync()59        {60            var result = new Dictionary<string, IJSHandle>();61            var channelResult = await _channel.GetPropertiesAsync().ConfigureAwait(false);62            foreach (var kv in channelResult)63            {64                result[kv.Name] = kv.Value.Object;65            }66            return result;67        }68        public async ValueTask DisposeAsync() => await _channel.DisposeAsync().ConfigureAwait(false);69        public override string ToString() => Preview;70    }...

JSHandleChannel.cs

Source:JSHandleChannel.cs

...50                {51                    ["expression"] = script,52                    ["arg"] = arg,53                });54        internal Task<JsonElement> JsonValueAsync() => Connection.SendMessageToServerAsync<JsonElement>(Guid, "jsonValue", null);55        internal Task DisposeAsync() => Connection.SendMessageToServerAsync(Guid, "dispose", null);56        internal Task<JSHandleChannel> GetPropertyAsync(string propertyName)57            => Connection.SendMessageToServerAsync<JSHandleChannel>(58                Guid,59                "getProperty",60                new Dictionary<string, object>61                {62                    ["name"] = propertyName,63                });64        internal async Task<List<JSElementProperty>> GetPropertiesAsync()65            => (await Connection.SendMessageToServerAsync(Guid, "getPropertyList", null).ConfigureAwait(false))?66                .GetProperty("properties").ToObject<List<JSElementProperty>>(Connection.DefaultJsonSerializerOptions);67        internal class JSElementProperty68        {...

JsonValueAsync

Using AI Code Generation

1using Microsoft.Playwright;2using Microsoft.Playwright.Core;3using System.Threading.Tasks;4using System;5{6    static async Task Main(string[] args)7    {8        using var playwright = await Playwright.CreateAsync();9        await using var browser = await playwright.Chromium.LaunchAsync();10        var context = await browser.NewContextAsync();11        var page = await context.NewPageAsync();12        var json = await page.EvaluateAsync<JsonValueAsync>("() => ({foo: 'bar'})");13        Console.WriteLine(json["foo"].Get<string>());14    }15}16using Microsoft.Playwright;17using Microsoft.Playwright.Core;18using System.Threading.Tasks;19using System;20{21    static async Task Main(string[] args)22    {23        using var playwright = await Playwright.CreateAsync();24        await using var browser = await playwright.Chromium.LaunchAsync();25        var context = await browser.NewContextAsync();26        var page = await context.NewPageAsync();27        var json = await page.EvaluateAsync<JsonValueAsync>("() => ({foo: 'bar'})");28        Console.WriteLine(json["foo"].Get<string>());29    }30}31using Microsoft.Playwright;32using Microsoft.Playwright.Core;33using System.Threading.Tasks;34using System;35{36    static async Task Main(string[] args)37    {38        using var playwright = await Playwright.CreateAsync();39        await using var browser = await playwright.Chromium.LaunchAsync();40        var context = await browser.NewContextAsync();41        var page = await context.NewPageAsync();42        var json = await page.EvaluateAsync<JsonValueAsync>("() => ({foo: 'bar'})");43        Console.WriteLine(json["foo"].Get<string>());44    }45}46using Microsoft.Playwright;47using Microsoft.Playwright.Core;48using System.Threading.Tasks;49using System;50{51    static async Task Main(string[] args)52    {

JsonValueAsync

Using AI Code Generation

1using Microsoft.Playwright;2using Microsoft.Playwright.Core;3using System;4using System.Threading.Tasks;5{6    static async Task Main()7    {8        var playwright = await Playwright.CreateAsync();9        var browser = await playwright.Chromium.LaunchAsync();10        var page = await browser.NewPageAsync();11        var jsHandle = await page.EvaluateHandleAsync("() => document");12        var jsonValue = await jsHandle.JsonValueAsync();13        Console.WriteLine(jsonValue);14        await browser.CloseAsync();15        await playwright.StopAsync();16    }17}18using Microsoft.Playwright;19using Microsoft.Playwright.Core;20using System;21using System.Threading.Tasks;22{23    static async Task Main()24    {25        var playwright = await Playwright.CreateAsync();26        var browser = await playwright.Chromium.LaunchAsync();27        var page = await browser.NewPageAsync();28        var jsHandle = await page.EvaluateHandleAsync("() => document.body");29        var jsonValue = await jsHandle.JsonValueAsync();30        Console.WriteLine(jsonValue);31        await browser.CloseAsync();32        await playwright.StopAsync();33    }34}35using Microsoft.Playwright;36using Microsoft.Playwright.Core;37using System;38using System.Threading.Tasks;39{40    static async Task Main()41    {42        var playwright = await Playwright.CreateAsync();43        var browser = await playwright.Chromium.LaunchAsync();44        var page = await browser.NewPageAsync();45        var jsHandle = await page.EvaluateHandleAsync("() => document.body.firstChild");46        var jsonValue = await jsHandle.JsonValueAsync();47        Console.WriteLine(jsonValue);48        await browser.CloseAsync();49        await playwright.StopAsync();50    }51}52using Microsoft.Playwright;53using Microsoft.Playwright.Core;54using System;55using System.Threading.Tasks;56{57    static async Task Main()58    {59        var playwright = await Playwright.CreateAsync();60        var browser = await playwright.Chromium.LaunchAsync();61        var page = await browser.NewPageAsync();62        var jsHandle = await page.EvaluateHandleAsync("() => document.body.firstChild.nextSibling");

JsonValueAsync

Using AI Code Generation

1var jsHandle = await page.QuerySelectorAsync("div");2var jsonValue = await jsHandle.JsonValueAsync();3var elementHandle = await page.QuerySelectorAsync("div");4var jsonValue = await elementHandle.JsonValueAsync();5var jsonValue = await page.JsonValueAsync("div");6var jsonValue = await page.JsonValueAsync("div");7var jsonValue = await browserContext.JsonValueAsync("div");8var jsonValue = await browserContext.JsonValueAsync("div");9var jsonValue = await playwright.JsonValueAsync("div");10var jsonValue = await playwright.JsonValueAsync("div");

JsonValueAsync

Using AI Code Generation

1var json = await page.EvaluateAsync<JsonValue>(@"() => {2    return {3    };4}");5Console.WriteLine(json.GetRawText());6var json = await page.EvaluateAsync<JsonValue>(@"() => {7    return {8    };9}");10Console.WriteLine(json.GetRawText());11var json = await page.EvaluateAsync<JsonValue>(@"() => {12    return {13    };14}");15Console.WriteLine(json.GetRawText());16var json = await page.EvaluateAsync<JsonValue>(@"() => {17    return {18    };19}");20Console.WriteLine(json.GetRawText());21var json = await page.EvaluateAsync<JsonValue>(@"() => {22    return {23    };24}");25Console.WriteLine(json.GetRawText());26var json = await page.EvaluateAsync<JsonValue>(@"() => {27    return {28    };29}");30Console.WriteLine(json.GetRawText());31var json = await page.EvaluateAsync<JsonValue>(@"() => {32    return {33    };34}");35Console.WriteLine(json.GetRawText());36var json = await page.EvaluateAsync<JsonValue>(@"() => {37    return {38    };39}");40Console.WriteLine(json.GetRawText());41var json = await page.EvaluateAsync<JsonValue>(@"() => {42    return {43    };44}");45Console.WriteLine(json.GetRawText());

JsonValueAsync

Using AI Code Generation

1var jsonValueAsync = await page.EvaluateAsync<JsonValue>("() => ({a: 1, b: 'text', c: true})");2Console.WriteLine(jsonValueAsync);3var jsonValueAsync = await page.EvaluateAsync<JsonValue>("() => ({a: 1, b: 'text', c: true})");4Console.WriteLine(jsonValueAsync);5var jsonValueAsync = await page.EvaluateAsync<JsonValue>("() => ({a: 1, b: 'text', c: true})");6Console.WriteLine(jsonValueAsync);7var jsonValueAsync = await page.EvaluateAsync<JsonValue>("() => ({a: 1, b: 'text', c: true})");8Console.WriteLine(jsonValueAsync);9var jsonValueAsync = await page.EvaluateAsync<JsonValue>("() => ({a: 1, b: 'text', c: true})");10Console.WriteLine(jsonValueAsync);11var jsonValueAsync = await page.EvaluateAsync<JsonValue>("() => ({a: 1, b: 'text', c: true})");12Console.WriteLine(jsonValueAsync);13var jsonValueAsync = await page.EvaluateAsync<JsonValue>("() => ({a: 1, b: 'text', c: true})");14Console.WriteLine(jsonValueAsync);15var jsonValueAsync = await page.EvaluateAsync<JsonValue>("() => ({a: 1, b: 'text', c: true})");16Console.WriteLine(jsonValueAsync);

JsonValueAsync

Using AI Code Generation

1var handle = await page.QuerySelectorAsync("div");2var attributeValue = await handle.JsonValueAsync("innerHTML");3Console.WriteLine(attributeValue);4var handle = await page.QuerySelectorAsync("div");5var attributeValue = await handle.JsonValueAsync("innerText");6Console.WriteLine(attributeValue);7var handle = await page.QuerySelectorAsync("div");8var attributeValue = await handle.JsonValueAsync("outerHTML");9Console.WriteLine(attributeValue);10var handle = await page.QuerySelectorAsync("div");11var attributeValue = await handle.JsonValueAsync("outerText");12Console.WriteLine(attributeValue);13var handle = await page.QuerySelectorAsync("div");14var attributeValue = await handle.JsonValueAsync("textContent");15Console.WriteLine(attributeValue);16var handle = await page.QuerySelectorAsync("div");17var attributeValue = await handle.JsonValueAsync("innerText");18Console.WriteLine(attributeValue);19var handle = await page.QuerySelectorAsync("div");20var attributeValue = await handle.JsonValueAsync("innerText");21Console.WriteLine(attributeValue);22var handle = await page.QuerySelectorAsync("div");23var attributeValue = await handle.JsonValueAsync("

Playwright tutorial

LambdaTest’s Playwright tutorial will give you a broader idea about the Playwright automation framework, its unique features, and use cases with examples to exceed your understanding of Playwright testing. This tutorial will give A to Z guidance, from installing the Playwright framework to some best practices and advanced concepts.

Chapters:

What is Playwright : Playwright is comparatively new but has gained good popularity. Get to know some history of the Playwright with some interesting facts connected with it.
How To Install Playwright : Learn in detail about what basic configuration and dependencies are required for installing Playwright and run a test. Get a step-by-step direction for installing the Playwright automation framework.
Playwright Futuristic Features: Launched in 2020, Playwright gained huge popularity quickly because of some obliging features such as Playwright Test Generator and Inspector, Playwright Reporter, Playwright auto-waiting mechanism and etc. Read up on those features to master Playwright testing.
What is Component Testing: Component testing in Playwright is a unique feature that allows a tester to test a single component of a web application without integrating them with other elements. Learn how to perform Component testing on the Playwright automation framework.
Inputs And Buttons In Playwright: Every website has Input boxes and buttons; learn about testing inputs and buttons with different scenarios and examples.
Functions and Selectors in Playwright: Learn how to launch the Chromium browser with Playwright. Also, gain a better understanding of some important functions like “BrowserContext,” which allows you to run multiple browser sessions, and “newPage” which interacts with a page.
Handling Alerts and Dropdowns in Playwright : Playwright interact with different types of alerts and pop-ups, such as simple, confirmation, and prompt, and different types of dropdowns, such as single selector and multi-selector get your hands-on with handling alerts and dropdown in Playright testing.
Playwright vs Puppeteer: Get to know about the difference between two testing frameworks and how they are different than one another, which browsers they support, and what features they provide.
Run Playwright Tests on LambdaTest: Playwright testing with LambdaTest leverages test performance to the utmost. You can run multiple Playwright tests in Parallel with the LammbdaTest test cloud. Get a step-by-step guide to run your Playwright test on the LambdaTest platform.
Playwright Python Tutorial: Playwright automation framework support all major languages such as Python, JavaScript, TypeScript, .NET and etc. However, there are various advantages to Python end-to-end testing with Playwright because of its versatile utility. Get the hang of Playwright python testing with this chapter.
Playwright End To End Testing Tutorial: Get your hands on with Playwright end-to-end testing and learn to use some exciting features such as TraceViewer, Debugging, Networking, Component testing, Visual testing, and many more.
Playwright Video Tutorial: Watch the video tutorials on Playwright testing from experts and get a consecutive in-depth explanation of Playwright automation testing.