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234 lines
8.3 KiB
Markdown
234 lines
8.3 KiB
Markdown
---
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id: cli
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title: "Command Line Interface"
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---
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Playwright comes with the command line tools that run via `npx` or as a part of the `npm` scripts.
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- [Usage](#usage)
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- [Generate code](#generate-code)
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- [Open pages](#open-pages)
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- [Inspect selectors](#inspect-selectors)
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- [Take screenshot](#take-screenshot)
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- [Generate PDF](#generate-pdf)
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- [Known limitations](#known-limitations)
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## Usage
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```sh
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$ npx playwright --help
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```
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Running from `package.json` script
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```json
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{
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"scripts": {
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"help": "playwright --help"
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}
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}
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```
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## Generate code
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```sh
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$ npx playwright codegen wikipedia.org
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```
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Run `codegen` and perform actions in the browser. Playwright CLI will generate JavaScript code for the user interactions. `codegen` will attempt to generate resilient text-based selectors.
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<img src="https://user-images.githubusercontent.com/284612/92536033-7e7ebe00-f1ed-11ea-9e1a-7cbd912e3391.gif"></img>
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### Preserve authenticated state
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Run `codegen` with `--save-storage` to save [cookies](https://developer.mozilla.org/en-US/docs/Web/HTTP/Cookies) and [localStorage](https://developer.mozilla.org/en-US/docs/Web/API/Window/localStorage) at the end. This is useful to separately record authentication step and reuse it later.
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```sh
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$ npx playwright --save-storage=auth.json codegen
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# Perform authentication and exit.
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# auth.json will contain the storage state.
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```
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Run with `--load-storage` to consume previously loaded storage. This way, all [cookies](https://developer.mozilla.org/en-US/docs/Web/HTTP/Cookies) and [localStorage](https://developer.mozilla.org/en-US/docs/Web/API/Window/localStorage) will be restored, bringing most web apps to the authenticated state.
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```sh
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$ npx playwright --load-storage=auth.json open my.web.app
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$ npx playwright --load-storage=auth.json codegen my.web.app
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# Perform actions in authenticated state.
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```
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## Open pages
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With `open`, you can use Playwright bundled browsers to browse web pages. Playwright provides cross-platform WebKit builds that can be used to reproduce Safari rendering across Windows, Linux and macOS.
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```sh
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# Open page in Chromium
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npx playwright open example.com
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```
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```sh
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# Open page in WebKit
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npx playwright wk example.com
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```
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### Emulate devices
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`open` can emulate mobile and tablet devices ([see all devices](https://github.com/microsoft/playwright/blob/master/src/server/deviceDescriptors.ts)).
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```sh
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# Emulate iPhone 11.
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npx playwright --device="iPhone 11" open wikipedia.org
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```
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### Emulate color scheme and viewport size
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```sh
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# Emulate screen size and color scheme.
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npx playwright --viewport-size=800,600 --color-scheme=dark open twitter.com
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```
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### Emulate geolocation, language and timezone
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```sh
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# Emulate timezone, language & location
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# Once page opens, click the "my location" button to see geolocation in action
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npx playwright --timezone="Europe/Rome" --geolocation="41.890221,12.492348" --lang="it-IT" open maps.google.com
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```
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## Inspect selectors
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During `open` or `codegen`, you can use following API inside the developer tools console of any browser.
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<img src="https://user-images.githubusercontent.com/284612/92536317-37dd9380-f1ee-11ea-875d-daf1b206dd56.png"></img>
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#### playwright.$(selector)
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Query Playwright selector, using the actual Playwright query engine, for example:
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```js
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> playwright.$('.auth-form >> text=Log in');
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<button>Log in</button>
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```
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#### playwright.$$(selector)
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Same as `playwright.$`, but returns all matching elements.
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```js
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> playwright.$$('li >> text=John')
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> [<li>, <li>, <li>, <li>]
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```
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#### playwright.inspect(selector)
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Reveal element in the Elements panel (if DevTools of the respective browser supports it).
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```js
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> playwright.inspect('text=Log in')
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```
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#### playwright.selector(element)
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Generates selector for the given element.
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```js
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> playwright.selector($0)
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"div[id="glow-ingress-block"] >> text=/.*Hello.*/"
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```
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## Take screenshot
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```sh
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# See command help
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$ npx playwright screenshot --help
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```
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```sh
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# Wait 3 seconds before capturing a screenshot after page loads ('load' event fires)
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npx playwright \
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--device="iPhone 11" \
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--color-scheme=dark \
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screenshot \
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--wait-for-timeout=3000 \
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twitter.com twitter-iphone.png
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```
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```sh
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# Capture a full page screenshot
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npx playwright screenshot --full-page en.wikipedia.org wiki-full.png
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```
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## Generate PDF
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PDF generation only works in Headless Chromium.
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```sh
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# See command help
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$ npx playwright pdf https://en.wikipedia.org/wiki/PDF wiki.pdf
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```
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## Known limitations
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Opening WebKit Web Inspector will disconnect Playwright from the browser. In such cases, code generation will stop.
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[Playwright]: api/class-playwright.md "Playwright"
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[Browser]: api/class-browser.md "Browser"
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[BrowserContext]: api/class-browsercontext.md "BrowserContext"
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[Page]: api/class-page.md "Page"
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[Frame]: api/class-frame.md "Frame"
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[ElementHandle]: api/class-elementhandle.md "ElementHandle"
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[JSHandle]: api/class-jshandle.md "JSHandle"
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[ConsoleMessage]: api/class-consolemessage.md "ConsoleMessage"
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[Dialog]: api/class-dialog.md "Dialog"
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[Download]: api/class-download.md "Download"
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[Video]: api/class-video.md "Video"
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[FileChooser]: api/class-filechooser.md "FileChooser"
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[Keyboard]: api/class-keyboard.md "Keyboard"
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[Mouse]: api/class-mouse.md "Mouse"
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[Touchscreen]: api/class-touchscreen.md "Touchscreen"
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[Request]: api/class-request.md "Request"
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[Response]: api/class-response.md "Response"
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[Selectors]: api/class-selectors.md "Selectors"
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[Route]: api/class-route.md "Route"
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[WebSocket]: api/class-websocket.md "WebSocket"
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[TimeoutError]: api/class-timeouterror.md "TimeoutError"
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[Accessibility]: api/class-accessibility.md "Accessibility"
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[Worker]: api/class-worker.md "Worker"
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[BrowserServer]: api/class-browserserver.md "BrowserServer"
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[BrowserType]: api/class-browsertype.md "BrowserType"
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[Logger]: api/class-logger.md "Logger"
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[ChromiumBrowser]: api/class-chromiumbrowser.md "ChromiumBrowser"
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[ChromiumBrowserContext]: api/class-chromiumbrowsercontext.md "ChromiumBrowserContext"
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[ChromiumCoverage]: api/class-chromiumcoverage.md "ChromiumCoverage"
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[CDPSession]: api/class-cdpsession.md "CDPSession"
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[FirefoxBrowser]: api/class-firefoxbrowser.md "FirefoxBrowser"
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[WebKitBrowser]: api/class-webkitbrowser.md "WebKitBrowser"
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[Array]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array "Array"
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[Buffer]: https://nodejs.org/api/buffer.html#buffer_class_buffer "Buffer"
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[ChildProcess]: https://nodejs.org/api/child_process.html "ChildProcess"
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[Element]: https://developer.mozilla.org/en-US/docs/Web/API/element "Element"
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[Error]: https://nodejs.org/api/errors.html#errors_class_error "Error"
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[Evaluation Argument]: ./core-concepts.md#evaluationargument "Evaluation Argument"
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[Map]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map "Map"
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[Object]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object "Object"
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[Promise]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise "Promise"
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[RegExp]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp "RegExp"
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[Serializable]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON/stringify#Description "Serializable"
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[UIEvent.detail]: https://developer.mozilla.org/en-US/docs/Web/API/UIEvent/detail "UIEvent.detail"
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[URL]: https://nodejs.org/api/url.html "URL"
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[USKeyboardLayout]: ../src/usKeyboardLayout.ts "USKeyboardLayout"
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[UnixTime]: https://en.wikipedia.org/wiki/Unix_time "Unix Time"
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[boolean]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#Boolean_type "Boolean"
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[function]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function "Function"
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[iterator]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Iteration_protocols "Iterator"
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[null]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/null "null"
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[number]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#Number_type "Number"
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[origin]: https://developer.mozilla.org/en-US/docs/Glossary/Origin "Origin"
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[selector]: https://developer.mozilla.org/en-US/docs/Web/CSS/CSS_Selectors "selector"
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[Readable]: https://nodejs.org/api/stream.html#stream_class_stream_readable "Readable"
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[string]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#String_type "string"
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[xpath]: https://developer.mozilla.org/en-US/docs/Web/XPath "xpath"
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