chore: enhance .NET onboarding story (#15755)

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@ -157,6 +157,19 @@ See all supported browsers:
pwsh bin\Debug\netX\playwright.ps1 install --help
```
## Install browsers via API
* langs: csharp
It's possible to run [Command line tools](./cli.md) commands via the .NET API:
```csharp
var exitCode = Microsoft.Playwright.Program.Main(new[] {"install"});
if (exitCode != 0)
{
throw new Exception($"Playwright exited with code {exitCode}");
}
```
## Managing browser binaries
Playwright downloads Chromium, WebKit and Firefox browsers into the OS-specific cache folders:

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@ -1,81 +1,89 @@
---
id: intro
title: "Getting started"
title: "Installation"
---
<!-- TOC -->
- [Release notes](./release-notes.md)
Playwright was created specifically to accommodate the needs of end-to-end testing. Playwright supports all modern rendering engines including Chromium, WebKit, and Firefox. Test on Windows, Linux, and macOS, locally or on CI, headless or headed with native mobile emulation.
## First project
You can choose to use [NUnit base classes](./test-runners.md#nunit) or [MSTest base classes](./test-runners.md#nunit) that Playwright provides to write end-to-end tests. These classes support running tests on multiple browser engines, parallelizing tests, adjusting launch/context options and getting a [Page]/[BrowserContext] instance per test out of the box.
Create a console project and add the Playwright dependency.
Start by creating a new project with `dotnet new`. This will create the `PlaywrightTests` directory which includes a `UnitTest1.cs` file:
<Tabs
defaultValue="nunit"
values={[
{label: 'NUnit', value: 'nunit'},
{label: 'MSTest', value: 'mstest'}
]
}>
<TabItem value="nunit">
```bash
# Create project
dotnet new console -n PlaywrightDemo
cd PlaywrightDemo
# Add project dependency
dotnet add package Microsoft.Playwright
# Build the project
dotnet build
# Install required browsers - replace netX with actual output folder name, f.ex. net6.0.
pwsh bin\Debug\netX\playwright.ps1 install
# If the pwsh command does not work (throws TypeNotFound), make sure to use an up-to-date version of PowerShell.
dotnet tool update --global PowerShell
```
Create a `Program.cs` that will navigate to `https://playwright.dev/dotnet` and take a screenshot in Chromium.
```csharp
using Microsoft.Playwright;
using var playwright = await Playwright.CreateAsync();
await using var browser = await playwright.Chromium.LaunchAsync();
var page = await browser.NewPageAsync();
await page.GotoAsync("https://playwright.dev/dotnet");
await page.ScreenshotAsync(new PageScreenshotOptions { Path = "screenshot.png" });
```
Now run it.
```bash
dotnet run
```
By default, Playwright runs the browsers in headless mode. To see the browser UI, pass the `Headless = false` flag while launching the browser. You can also use [`option: slowMo`] to slow down execution. Learn more in the debugging tools [section](./debug.md).
```csharp
await playwright.Firefox.LaunchAsync(new()
{
Headless = false,
SlowMo = 50,
});
```
## First test
You can choose to use NUnit test fixtures that come bundled with Playwright. These fixtures support running tests on multiple browser engines in parallel, out of the box. Learn more about [Playwright with NUnit](./test-runners.md).
```bash
# Create new project.
dotnet new nunit -n PlaywrightTests
cd PlaywrightTests
```
Install dependencies, build project and download necessary browsers. This is only done once per project.
</TabItem>
<TabItem value="mstest">
```bash
dotnet new mstest -n PlaywrightTests
cd PlaywrightTests
```
</TabItem>
</Tabs>
Install the necessary Playwright dependencies:
<Tabs
defaultValue="nunit"
values={[
{label: 'NUnit', value: 'nunit'},
{label: 'MSTest', value: 'mstest'}
]
}>
<TabItem value="nunit">
```bash
# Add project dependency
dotnet add package Microsoft.Playwright.NUnit
# Build the project
```
</TabItem>
<TabItem value="mstest">
```bash
dotnet add package Microsoft.Playwright.MSTest
```
</TabItem>
</Tabs>
Build the project so the `playwright.ps1` is available inside the `bin` directory:
```bash
dotnet build
# Install required browsers - replace netX with actual output folder name, f.ex. net6.0.
```
Install required browsers by replacing `netX` with the actual output folder name, e.g. `net6.0`:
```bash
pwsh bin\Debug\netX\playwright.ps1 install
```
Edit UnitTest1.cs file.
## Add Example Tests
Edit the `UnitTest1.cs` file with the code below to create an example end-to-end test:
<Tabs
defaultValue="nunit"
values={[
{label: 'NUnit', value: 'nunit'},
{label: 'MSTest', value: 'mstest'}
]
}>
<TabItem value="nunit">
```csharp
using System.Threading.Tasks;
using Microsoft.Playwright.NUnit;
@ -110,70 +118,78 @@ public class Tests : PageTest
}
```
</TabItem>
<TabItem value="mstest">
```csharp
using Microsoft.Playwright.MSTest;
namespace PlaywrightTests;
public class UnitTest1 : PageTest
{
[TestMethod]
async public Task ShouldHaveTheCorrectSlogan()
{
await Page.GotoAsync("https://playwright.dev");
await Expect(Page.Locator("text=enables reliable end-to-end testing for modern web apps")).ToBeVisibleAsync();
}
[TestMethod]
public async Task ShouldHaveTheCorrectTitle()
{
await Page.GotoAsync("https://playwright.dev");
var title = Page.Locator(".navbar__inner .navbar__title");
await Expect(title).ToHaveTextAsync("Playwright");
}
[TestMethod]
public async Task ShouldAdd()
{
var result = await Page.EvaluateAsync<int>("() => 7 + 3");
Assert.AreEqual(10, result);
}
}
```
</TabItem>
</Tabs>
## Running the Example Tests
By default tests will be run on Chromium. This can be configured via the `BROWSER` environment variable, or by adjusting the [launch configuration options](./test-runners.md). Tests are run in headless mode meaning no browser will open up when running the tests. Results of the tests and test logs will be shown in the terminal.
<Tabs
defaultValue="nunit"
values={[
{label: 'NUnit', value: 'nunit'},
{label: 'MSTest', value: 'mstest'}
]
}>
<TabItem value="nunit">
```bash
dotnet test -- NUnit.NumberOfTestWorkers=5
```
## Record scripts
[Command line tools](./cli.md) can be used to record user interactions and generate C# code.
</TabItem>
<TabItem value="mstest">
```bash
pwsh bin\Debug\netX\playwright.ps1 codegen
dotnet test -- MSTest.Parallelize.Workers=5
```
## Install browsers via API
</TabItem>
</Tabs>
It's possible to run [Command line tools](./cli.md) commands via the .NET API:
See our doc on [Test Runners](./test-runners.md) to learn more about running tests in headed mode, running multiple tests, running specific configurations etc.
```csharp
var exitCode = Microsoft.Playwright.Program.Main(new[] {"install"});
if (exitCode != 0)
{
throw new Exception($"Playwright exited with code {exitCode}");
}
```
## What's next
## Bundle drivers for different platforms
Playwright by default does bundle only the driver for the .NET publish target runtime. If you want to bundle for additional platforms, you can
override this behavior by using either `all`, `none` or `linux`, `win`, `osx` in your project file.
```xml
<PropertyGroup>
<PlaywrightPlatform>all</PlaywrightPlatform>
</PropertyGroup>
```
or:
```xml
<PropertyGroup>
<PlaywrightPlatform>osx;linux</PlaywrightPlatform>
</PropertyGroup>
```
## System requirements
The browser binaries for Chromium, Firefox and WebKit work across the 3 platforms (Windows, macOS, Linux):
### Windows
Works with Windows and Windows Subsystem for Linux (WSL).
### macOS
Requires 11 (Big Sur) or above.
### Linux
Depending on your Linux distribution, you might need to install additional
dependencies to run the browsers.
:::note
Only Ubuntu 18.04, 20.04, and 22.04 are officially supported.
:::
See also in the [Command line tools](./cli.md#install-system-dependencies)
which has a command to install all necessary dependencies automatically for Ubuntu
LTS releases.
- [Write tests using web first assertions, page fixtures and locators](./writing-tests.md)
- [Run single tests, multiple tests, headed mode](./running-tests.md)
- [Learn more about the NUnit and MSTest base classes](./test-runners.md)
- [Debug tests with the Playwright Debugger](./debug.md)
- [Generate tests with Codegen](./codegen.md)
- [See a trace of your tests](./trace-viewer.md)
- [Using Playwright as library](./library.md)

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@ -0,0 +1,73 @@
---
id: library
title: "Getting started - Library"
---
Playwright can either be used with the [NUnit](./test-runners.md#nunit) or [MSTest](./test-runners.md#mstest), or as a Playwright Library (this guide). If you are working on an application that utilizes Playwright capabilities or you are using Playwright with another test runner, read on.
## Usage
Create a console project and add the Playwright dependency.
```bash
# Create project
dotnet new console -n PlaywrightDemo
cd PlaywrightDemo
# Add project dependency
dotnet add package Microsoft.Playwright
# Build the project
dotnet build
# Install required browsers - replace netX with actual output folder name, e.g. net6.0.
pwsh bin\Debug\netX\playwright.ps1 install
# If the pwsh command does not work (throws TypeNotFound), make sure to use an up-to-date version of PowerShell.
dotnet tool update --global PowerShell
```
Create a `Program.cs` that will navigate to `https://playwright.dev/dotnet` and take a screenshot in Chromium.
```csharp
using Microsoft.Playwright;
using var playwright = await Playwright.CreateAsync();
await using var browser = await playwright.Chromium.LaunchAsync();
var page = await browser.NewPageAsync();
await page.GotoAsync("https://playwright.dev/dotnet");
await page.ScreenshotAsync(new PageScreenshotOptions { Path = "screenshot.png" });
```
Now run it.
```bash
dotnet run
```
By default, Playwright runs the browsers in headless mode. To see the browser UI, pass the `Headless = false` flag while launching the browser. You can also use [`option: slowMo`] to slow down execution. Learn more in the debugging tools [section](./debug.md).
```csharp
await using var browser = await playwright.Firefox.LaunchAsync(new()
{
Headless = false,
SlowMo = 50,
});
```
## Bundle drivers for different platforms
Playwright by default does bundle only the driver for the .NET publish target runtime. If you want to bundle for additional platforms, you can
override this behavior by using either `all`, `none` or `linux`, `win`, `osx` in your project file.
```xml
<PropertyGroup>
<PlaywrightPlatform>all</PlaywrightPlatform>
</PropertyGroup>
```
or:
```xml
<PropertyGroup>
<PlaywrightPlatform>osx;linux</PlaywrightPlatform>
</PropertyGroup>
```

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@ -0,0 +1,74 @@
---
id: running-tests
title: "Running Tests"
---
You can run a single test, a set of tests or all tests. Tests can be run on different browsers. By default tests are run in a headless manner meaning no browser window will be opened while running the tests and results will be seen in the terminal. If you prefer you can run your tests in headed mode by using the `headless` test run parameter.
- Running all tests
```bash
dotnet test
```
- Running a single test file
```bash
dotnet test --filter "MyClassName"
```
- Run a set of test files
```bash
dotnet test --filter "MyClassName1|MyClassName2"
```
- Run the test with the title
```bash
dotnet test --filter "Name~TestMethod1"
```
- Running Tests on specific browsers
```bash tab=bash-bash
BROWSER=webkit dotnet test
```
```batch tab=bash-batch
set BROWSER=webkit
dotnet test
```
```powershell tab=bash-powershell
$env:BROWSER="webkit"
dotnet test
```
- Running Tests on multiple browsers
To run your test on multiple browsers or configurations you need to invoke the `dotnet test` command multiple times. There you can then either specify the `BROWSER` environment variable (like the previous) or pass the `browser` via the runsettings file:
```bash
dotnet test --settings:chromium.runsettings
dotnet test --settings:firefox.runsettings
dotnet test --settings:webkit.runsettings
```
```xml
<?xml version="1.0" encoding="utf-8"?>
<RunSettings>
<TestRunParameters>
<Parameter name="browser" value="chromium" />
<Parameter name="headless" value="false" />
</TestRunParameters>
</RunSettings>
```
For more information see [selective unit tests](https://docs.microsoft.com/en-us/dotnet/core/testing/selective-unit-tests?pivots=mstest) in the Microsoft docs.
## What's Next
- [Debug tests with the Playwright Debugger](./debug.md)
- [Generate tests with Codegen](./codegen.md)
- [See a trace of your tests](./trace-viewer.md)

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@ -108,6 +108,69 @@ By default NUnit will run all test files in parallel, while running tests inside
For CPU-bound tests, we recommend using as many workers as there are cores on your system, divided by 2. For IO-bound tests you can use as many workers as you have cores.
### Customizing [BrowserContext] options
To customize context options, you can override the `ContextOptions` method of your test class derived from `Microsoft.Playwright.MSTest.PageTest` or `Microsoft.Playwright.MSTest.ContextTest`. See the following example:
```csharp
using Microsoft.Playwright.NUnit;
namespace PlaywrightTests;
[Parallelizable(ParallelScope.Self)]
public class MyTest : PageTest
{
[Test]
public async Task TestWithCustomContextOptions()
{
// The following Page (and BrowserContext) instance has the custom colorScheme, viewport and baseURL set:
await Page.GotoAsync("/login");
}
public override BrowserNewContextOptions ContextOptions()
{
return new BrowserNewContextOptions()
{
ColorScheme = ColorScheme.Light,
ViewportSize = new()
{
Width = 1920,
Height = 1080
},
BaseURL = "https://github.com",
};
}
}
```
### Customizing [Browser]/launch options
[Browser]/launch options can be override either using a run settings file or by setting the run settings options directly via the
CLI. See the following example:
```xml
<?xml version="1.0" encoding="utf-8"?>
<RunSettings>
<TestRunParameters>
<Parameter name="browser" value="chromium" />
<Parameter name="headless" value="false" />
<Parameter name="channel" value="msedge" />
</TestRunParameters>
</RunSettings>
```
```bash tab=bash-bash
dotnet test -- TestRunParameters.Parameter\(name=\"browser\", value=\"chromium\"\) TestRunParameters.Parameter\(name=\"headless\", value=\"false\"\) TestRunParameters.Parameter\(name=\"channel\", value=\"msedge\"\)
```
```batch tab=bash-batch
dotnet test -- TestRunParameters.Parameter(name=\"browser\", value=\"chromium\") TestRunParameters.Parameter(name=\"headless\", value=\"false\") TestRunParameters.Parameter(name=\"channel\", value=\"msedge\")
```
```powershell tab=bash-powershell
dotnet test -- TestRunParameters.Parameter(name=\"browser\", value=\"chromium\") TestRunParameters.Parameter(name=\"headless\", value=\"false\") TestRunParameters.Parameter(name=\"channel\", value=\"msedge\")
```
### Using Verbose API Logs
When you have enabled the [verbose API log](./debug.md#verbose-api-logs), via the `DEBUG` environment variable, you will see the messages in the standard error stream. In NUnit, within Visual Studio, that will be the `Tests` pane of the `Output` window. It will also be displayed in the `Test Log` for each test.
@ -247,6 +310,73 @@ By default MSTest will run all classes in parallel, while running tests inside e
dotnet test --settings:.runsettings -- MSTest.Parallelize.Workers=4
```
### Customizing [BrowserContext] options
To customize context options, you can override the `ContextOptions` method of your test class derived from `Microsoft.Playwright.MSTest.PageTest` or `Microsoft.Playwright.MSTest.ContextTest`. See the following example:
```csharp
using System.Threading.Tasks;
using Microsoft.Playwright;
using Microsoft.Playwright.MSTest;
using Microsoft.VisualStudio.TestTools.UnitTesting;
namespace PlaywrightTests;
[TestClass]
public class UnitTest1 : PageTest
{
[TestMethod]
public async Task TestWithCustomContextOptions()
{
// The following Page (and BrowserContext) instance has the custom colorScheme, viewport and baseURL set:
await Page.GotoAsync("/login");
}
public override BrowserNewContextOptions ContextOptions()
{
return new BrowserNewContextOptions()
{
ColorScheme = ColorScheme.Light,
ViewportSize = new()
{
Width = 1920,
Height = 1080
},
BaseURL = "https://github.com",
};
}
}
```
### Customizing [Browser]/launch options
[Browser]/launch options can be override either using a run settings file or by setting the run settings options directly via the
CLI. See the following example:
```xml
<?xml version="1.0" encoding="utf-8"?>
<RunSettings>
<TestRunParameters>
<Parameter name="browser" value="chromium" />
<Parameter name="headless" value="false" />
<Parameter name="channel" value="msedge" />
</TestRunParameters>
</RunSettings>
```
```bash tab=bash-bash
dotnet test -- TestRunParameters.Parameter\(name=\"browser\", value=\"chromium\"\) TestRunParameters.Parameter\(name=\"headless\", value=\"false\"\) TestRunParameters.Parameter\(name=\"channel\", value=\"msedge\"\)
```
```batch tab=bash-batch
dotnet test -- TestRunParameters.Parameter(name=\"browser\", value=\"chromium\") TestRunParameters.Parameter(name=\"headless\", value=\"false\") TestRunParameters.Parameter(name=\"channel\", value=\"msedge\")
```
```powershell tab=bash-powershell
dotnet test -- TestRunParameters.Parameter(name=\"browser\", value=\"chromium\") TestRunParameters.Parameter(name=\"headless\", value=\"false\") TestRunParameters.Parameter(name=\"channel\", value=\"msedge\")
```
### Using Verbose API Logs
When you have enabled the [verbose API log](./debug.md#verbose-api-logs), via the `DEBUG` environment variable, you will see the messages in the standard error stream. In MSTest, within Visual Studio, that will be the `Tests` pane of the `Output` window. It will also be displayed in the `Test Log` for each test.

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@ -0,0 +1,238 @@
---
id: writing-tests
title: "Writing Tests"
---
Playwright assertions are created specifically for the dynamic web. Checks are automatically retried until the necessary conditions are met. Playwright comes with auto-wait built in meaning it waits for elements to be actionable prior to performing actions. Playwright provides the [Expect](./test-assertions) function to write assertions.
Take a look at the example test to see how to write a test using web first assertions, locators and selectors.
<Tabs
defaultValue="nunit"
values={[
{label: 'NUnit', value: 'nunit'},
{label: 'MSTest', value: 'mstest'}
]
}>
<TabItem value="nunit">
```csharp
using System.Text.RegularExpressions;
using Microsoft.Playwright.NUnit;
namespace PlaywrightTests;
[Parallelizable(ParallelScope.Self)]
public class Tests : PageTest
{
[Test]
async public Task HomepageHasPlaywrightInTitleAndGetStartedLinkLinkingtoTheIntroPage()
{
await Page.GotoAsync("https://playwright.dev");
// Expect a title "to contain" a substring.
await Expect(Page).ToHaveTitleAsync(new Regex("Playwright"));
// create a locator
var getStarted = Page.Locator("text=Get Started");
// Expect an attribute "to be strictly equal" to the value.
await Expect(getStarted).ToHaveAttributeAsync("href", "/docs/intro");
// Click the get started link.
await getStarted.ClickAsync();
// Expects the URL to contain intro.
await Expect(Page).ToHaveURLAsync(new Regex(".*intro"));
}
}
```
</TabItem>
<TabItem value="mstest">
```csharp
using System.Text.RegularExpressions;
using Microsoft.Playwright.MSTest;
namespace PlaywrightTests;
public class UnitTest1 : PageTest
{
[TestMethod]
async public Task HomepageHasPlaywrightInTitleAndGetStartedLinkLinkingtoTheIntroPage()
{
await Page.GotoAsync("https://playwright.dev");
// Expect a title "to contain" a substring.
await Expect(Page).ToHaveTitleAsync(new Regex("Playwright"));
// create a locator
var getStarted = Page.Locator("text=Get Started");
// Expect an attribute "to be strictly equal" to the value.
await Expect(getStarted).ToHaveAttributeAsync("href", "/docs/intro");
// Click the get started link.
await getStarted.ClickAsync();
// Expects the URL to contain intro.
await Expect(Page).ToHaveURLAsync(new Regex(".*intro"));
}
}
```
</TabItem>
</Tabs>
### Assertions
Playwright provides an async function called [Expect](./test-assertions) to assert and wait until the expected condition is met.
```csharp
await Expect(Page).ToHaveTitleAsync(new Regex("Playwright"));
```
### Locators
[Locators](./locators.md) are the central piece of Playwright's auto-waiting and retry-ability. Locators represent a way to find element(s) on the page at any moment and are used to perform actions on elements such as .click .fill etc. Custom locators can be created with the [`method: Page.locator`] method.
```csharp
var getStarted = Page.Locator("text=Get Started");
await Expect(getStarted).ToHaveAttributeAsync("href", "/docs/installation");
await getStarted.ClickAsync();
```
[Selectors](./selectors.md) are strings that are used to create Locators. Playwright supports many different selectors like [Text](./selectors.md#text-selector), [CSS](./selectors.md#css-selector), [XPath](./selectors.md#xpath-selectors) and many more.
```csharp
await Expect(Page.Locator("text=Installation")).ToBeVisibleAsync();
```
### Test Isolation
The Playwright NUnit and MSTest test framework base classes will isolate each test from each other by providing a separate `Page` instance. Pages are isolated between tests due to the Browser Context, which is equivalent to a brand new browser profile, where every test gets a fresh environment, even when multiple tests run in a single Browser.
<Tabs
defaultValue="nunit"
values={[
{label: 'NUnit', value: 'nunit'},
{label: 'MSTest', value: 'mstest'}
]
}>
<TabItem value="nunit">
```csharp
using System.Threading.Tasks;
using Microsoft.Playwright.NUnit;
using NUnit.Framework;
namespace PlaywrightTests;
[Parallelizable(ParallelScope.Self)]
public class Tests : PageTest
{
[Test]
public async Task BasicTest()
{
await Page.GotoAsync("https://playwright.dev");
}
}
```
</TabItem>
<TabItem value="mstest">
```csharp
using Microsoft.Playwright.MSTest;
namespace PlaywrightTests;
public class UnitTest1 : PageTest
{
[TestMethod]
public async Task BasicTest()
{
await Page.GotoAsync("https://playwright.dev");
}
}
```
</TabItem>
</Tabs>
### Using Test Hooks
You can use `SetUp`/`TearDown` in NUnit or `TestInitialize`/`TestCleanup` in MSTest to prepare and clean up your test environment:
<Tabs
defaultValue="nunit"
values={[
{label: 'NUnit', value: 'nunit'},
{label: 'MSTest', value: 'mstest'}
]
}>
<TabItem value="nunit">
```csharp
using System.Threading.Tasks;
using Microsoft.Playwright.NUnit;
using NUnit.Framework;
namespace PlaywrightTests;
[Parallelizable(ParallelScope.Self)]
public class Tests : PageTest
{
[Test]
public async Task MainNavigation()
{
// Assertions use the expect API.
await Expect(Page).ToHaveURLAsync("https://playwright.dev/");
}
[SetUp]
public async Task SetUp()
{
await Page.GotoAsync("https://playwright.dev");
}
}
```
</TabItem>
<TabItem value="mstest">
```csharp
using Microsoft.Playwright.MSTest;
namespace PlaywrightTests;
public class UnitTest1 : PageTest
{
[TestMethod]
public async Task MainNavigation()
{
// Assertions use the expect API.
await Expect(Page).ToHaveURLAsync("https://playwright.dev/");
}
[TestInitialize]
public async Task TestInitialize()
{
await Page.GotoAsync("https://playwright.dev");
}
}
```
</TabItem>
</Tabs>
## What's Next
- [Run single tests, multiple tests, headed mode](./running-tests.md)
- [Debug tests with the Playwright Debugger](./debug.md)
- [Generate tests with Codegen](./codegen.md)
- [See a trace of your tests](./trace-viewer.md)

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@ -69,7 +69,7 @@ await expect(page).toHaveTitle(/Playwright/);
### Locators
[Locators](./locators.md) are the central piece of Playwright's auto-waiting and retry-ability. Locators represent a way to find element(s) on the page at any moment and are used to perform actions on elements such as .click. fill etc. Custom locators can be created with the [`method: Page.locator`] method.
[Locators](./locators.md) are the central piece of Playwright's auto-waiting and retry-ability. Locators represent a way to find element(s) on the page at any moment and are used to perform actions on elements such as .click .fill etc. Custom locators can be created with the [`method: Page.locator`] method.
```js
const getStarted = page.locator('text=Get Started');