ace31d6f58
Without the API-* dependencies pinned different versions may be installed on local machines vs CI. One of the checks we do is to check that the checked in docs matches what is generated on CI. Therefore we need to ensure devs locally run the exact version that CI runs such that they generate the same output. So in this case we pin to a particular version of the dependencies.
142 lines
7.1 KiB
Markdown
142 lines
7.1 KiB
Markdown
<!-- Do not edit this file. It is automatically generated by API Documenter. -->
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[Home](./index.md) > [puppeteer](./puppeteer.md) > [Page](./puppeteer.page.md)
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## Page class
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Page provides methods to interact with a single tab or \[extension background page\](https://developer.chrome.com/extensions/background\_pages) in Chromium. One \[Browser\] instance might have multiple \[Page\] instances.
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<b>Signature:</b>
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```typescript
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export declare class Page extends EventEmitter
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```
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<b>Extends:</b> [EventEmitter](./puppeteer.eventemitter.md)
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## Remarks
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The constructor for this class is marked as internal. Third-party code should not call the constructor directly or create subclasses that extend the `Page` class.
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## Example 1
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This example creates a page, navigates it to a URL, and then \* saves a screenshot:
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```js
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const puppeteer = require('puppeteer');
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(async () => {
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const browser = await puppeteer.launch();
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const page = await browser.newPage();
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await page.goto('https://example.com');
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await page.screenshot({path: 'screenshot.png'});
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await browser.close();
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})();
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```
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The Page class extends from Puppeteer's [EventEmitter](./puppeteer.eventemitter.md) class and will emit various events which are documented in the [PageEmittedEvents](./puppeteer.pageemittedevents.md) enum.
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## Example 2
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This example logs a message for a single page `load` event:
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```js
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page.once('load', () => console.log('Page loaded!'));
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```
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To unsubscribe from events use the `off` method:
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```js
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function logRequest(interceptedRequest) {
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console.log('A request was made:', interceptedRequest.url());
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}
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page.on('request', logRequest);
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// Sometime later...
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page.off('request', logRequest);
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```
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## Properties
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| Property | Modifiers | Type | Description |
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| --- | --- | --- | --- |
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| [accessibility](./puppeteer.page.accessibility.md) | | [Accessibility](./puppeteer.accessibility.md) | |
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| [coverage](./puppeteer.page.coverage.md) | | [Coverage](./puppeteer.coverage.md) | |
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| [keyboard](./puppeteer.page.keyboard.md) | | [Keyboard](./puppeteer.keyboard.md) | |
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| [mouse](./puppeteer.page.mouse.md) | | [Mouse](./puppeteer.mouse.md) | |
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| [touchscreen](./puppeteer.page.touchscreen.md) | | [Touchscreen](./puppeteer.touchscreen.md) | |
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| [tracing](./puppeteer.page.tracing.md) | | [Tracing](./puppeteer.tracing.md) | |
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## Methods
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| Method | Modifiers | Description |
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| --- | --- | --- |
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| [$(selector)](./puppeteer.page._.md) | | |
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| [$$(selector)](./puppeteer.page.__.md) | | |
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| [$$eval(selector, pageFunction, args)](./puppeteer.page.__eval.md) | | |
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| [$eval(selector, pageFunction, args)](./puppeteer.page._eval.md) | | |
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| [$x(expression)](./puppeteer.page._x.md) | | |
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| [addScriptTag(options)](./puppeteer.page.addscripttag.md) | | |
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| [addStyleTag(options)](./puppeteer.page.addstyletag.md) | | |
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| [authenticate(credentials)](./puppeteer.page.authenticate.md) | | |
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| [bringToFront()](./puppeteer.page.bringtofront.md) | | |
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| [browser()](./puppeteer.page.browser.md) | | |
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| [browserContext()](./puppeteer.page.browsercontext.md) | | |
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| [click(selector, options)](./puppeteer.page.click.md) | | |
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| [close(options)](./puppeteer.page.close.md) | | |
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| [content()](./puppeteer.page.content.md) | | |
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| [cookies(urls)](./puppeteer.page.cookies.md) | | |
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| [deleteCookie(cookies)](./puppeteer.page.deletecookie.md) | | |
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| [emulate(options)](./puppeteer.page.emulate.md) | | |
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| [emulateMediaFeatures(features)](./puppeteer.page.emulatemediafeatures.md) | | |
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| [emulateMediaType(type)](./puppeteer.page.emulatemediatype.md) | | |
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| [emulateTimezone(timezoneId)](./puppeteer.page.emulatetimezone.md) | | |
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| [emulateVisionDeficiency(type)](./puppeteer.page.emulatevisiondeficiency.md) | | |
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| [evaluate(pageFunction, args)](./puppeteer.page.evaluate.md) | | |
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| [evaluateHandle(pageFunction, args)](./puppeteer.page.evaluatehandle.md) | | |
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| [evaluateOnNewDocument(pageFunction, args)](./puppeteer.page.evaluateonnewdocument.md) | | |
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| [exposeFunction(name, puppeteerFunction)](./puppeteer.page.exposefunction.md) | | |
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| [focus(selector)](./puppeteer.page.focus.md) | | |
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| [frames()](./puppeteer.page.frames.md) | | |
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| [goBack(options)](./puppeteer.page.goback.md) | | |
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| [goForward(options)](./puppeteer.page.goforward.md) | | |
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| [goto(url, options)](./puppeteer.page.goto.md) | | |
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| [hover(selector)](./puppeteer.page.hover.md) | | |
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| [isClosed()](./puppeteer.page.isclosed.md) | | |
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| [isJavaScriptEnabled()](./puppeteer.page.isjavascriptenabled.md) | | |
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| [mainFrame()](./puppeteer.page.mainframe.md) | | |
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| [metrics()](./puppeteer.page.metrics.md) | | |
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| [pdf(options)](./puppeteer.page.pdf.md) | | |
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| [queryObjects(prototypeHandle)](./puppeteer.page.queryobjects.md) | | |
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| [reload(options)](./puppeteer.page.reload.md) | | |
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| [screenshot(options)](./puppeteer.page.screenshot.md) | | |
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| [select(selector, values)](./puppeteer.page.select.md) | | |
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| [setBypassCSP(enabled)](./puppeteer.page.setbypasscsp.md) | | |
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| [setCacheEnabled(enabled)](./puppeteer.page.setcacheenabled.md) | | |
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| [setContent(html, options)](./puppeteer.page.setcontent.md) | | |
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| [setCookie(cookies)](./puppeteer.page.setcookie.md) | | |
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| [setDefaultNavigationTimeout(timeout)](./puppeteer.page.setdefaultnavigationtimeout.md) | | |
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| [setDefaultTimeout(timeout)](./puppeteer.page.setdefaulttimeout.md) | | |
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| [setExtraHTTPHeaders(headers)](./puppeteer.page.setextrahttpheaders.md) | | |
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| [setGeolocation(options)](./puppeteer.page.setgeolocation.md) | | |
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| [setJavaScriptEnabled(enabled)](./puppeteer.page.setjavascriptenabled.md) | | |
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| [setOfflineMode(enabled)](./puppeteer.page.setofflinemode.md) | | |
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| [setRequestInterception(value)](./puppeteer.page.setrequestinterception.md) | | |
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| [setUserAgent(userAgent)](./puppeteer.page.setuseragent.md) | | |
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| [setViewport(viewport)](./puppeteer.page.setviewport.md) | | |
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| [tap(selector)](./puppeteer.page.tap.md) | | |
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| [target()](./puppeteer.page.target.md) | | |
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| [title()](./puppeteer.page.title.md) | | |
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| [type(selector, text, options)](./puppeteer.page.type.md) | | |
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| [url()](./puppeteer.page.url.md) | | |
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| [viewport()](./puppeteer.page.viewport.md) | | |
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| [waitFor(selectorOrFunctionOrTimeout, options, args)](./puppeteer.page.waitfor.md) | | |
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| [waitForFileChooser(options)](./puppeteer.page.waitforfilechooser.md) | | |
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| [waitForFunction(pageFunction, options, args)](./puppeteer.page.waitforfunction.md) | | |
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| [waitForNavigation(options)](./puppeteer.page.waitfornavigation.md) | | |
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| [waitForRequest(urlOrPredicate, options)](./puppeteer.page.waitforrequest.md) | | |
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| [waitForResponse(urlOrPredicate, options)](./puppeteer.page.waitforresponse.md) | | |
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| [waitForSelector(selector, options)](./puppeteer.page.waitforselector.md) | | |
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| [waitForXPath(xpath, options)](./puppeteer.page.waitforxpath.md) | | |
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| [workers()](./puppeteer.page.workers.md) | | |
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