931d4fced5
🤖 I have created a release *beep* *boop* --- <details><summary>puppeteer: 19.4.0</summary> ## [19.4.0](https://github.com/puppeteer/puppeteer/compare/puppeteer-v19.3.0...puppeteer-v19.4.0) (2022-12-07) ### Features * **chromium:** roll to Chromium 109.0.5412.0 (r1069273) ([#9364](https://github.com/puppeteer/puppeteer/issues/9364)) ([1875da6](1875da6191)), closes [#9233](https://github.com/puppeteer/puppeteer/issues/9233) ### Dependencies * The following workspace dependencies were updated * dependencies * puppeteer-core bumped from 19.3.0 to 19.4.0 </details> <details><summary>puppeteer-core: 19.4.0</summary> ## [19.4.0](https://github.com/puppeteer/puppeteer/compare/puppeteer-core-v19.3.0...puppeteer-core-v19.4.0) (2022-12-07) ### Features * ability to send headers via ws connection to browser in node.js environment ([#9314](https://github.com/puppeteer/puppeteer/issues/9314)) ([937fffa](937fffaedc)), closes [#7218](https://github.com/puppeteer/puppeteer/issues/7218) * **chromium:** roll to Chromium 109.0.5412.0 (r1069273) ([#9364](https://github.com/puppeteer/puppeteer/issues/9364)) ([1875da6](1875da6191)), closes [#9233](https://github.com/puppeteer/puppeteer/issues/9233) * **puppeteer-core:** keydown supports commands ([#9357](https://github.com/puppeteer/puppeteer/issues/9357)) ([b7ebc5d](b7ebc5d9bb)) ### Bug Fixes * **puppeteer-core:** avoid type instantiation errors ([#9370](https://github.com/puppeteer/puppeteer/issues/9370)) ([17f31a9](17f31a9ee4)), closes [#9369](https://github.com/puppeteer/puppeteer/issues/9369) </details> --- This PR was generated with [Release Please](https://github.com/googleapis/release-please). See [documentation](https://github.com/googleapis/release-please#release-please). Co-authored-by: release-please[bot] <55107282+release-please[bot]@users.noreply.github.com>
49 lines
4.6 KiB
Markdown
49 lines
4.6 KiB
Markdown
---
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sidebar_label: JSHandle
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---
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# JSHandle class
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Represents a reference to a JavaScript object. Instances can be created using [Page.evaluateHandle()](./puppeteer.page.evaluatehandle.md).
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Handles prevent the referenced JavaScript object from being garbage-collected unless the handle is purposely [disposed](./puppeteer.jshandle.dispose.md). JSHandles are auto-disposed when their associated frame is navigated away or the parent context gets destroyed.
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Handles can be used as arguments for any evaluation function such as [Page.$eval()](./puppeteer.page._eval.md), [Page.evaluate()](./puppeteer.page.evaluate.md), and [Page.evaluateHandle()](./puppeteer.page.evaluatehandle.md). They are resolved to their referenced object.
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#### Signature:
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```typescript
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export declare class JSHandle<T = unknown>
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```
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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 `JSHandle` class.
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## Example
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```ts
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const windowHandle = await page.evaluateHandle(() => window);
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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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| [\[\_\_JSHandleSymbol\]?](./puppeteer.jshandle.___jshandlesymbol_.md) | | T | <i>(Optional)</i> Used for nominally typing [JSHandle](./puppeteer.jshandle.md). |
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## Methods
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| Method | Modifiers | Description |
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| ---------------------------------------------------------------------------- | --------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------- |
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| [asElement()](./puppeteer.jshandle.aselement.md) | | |
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| [dispose()](./puppeteer.jshandle.dispose.md) | | Releases the object referenced by the handle for garbage collection. |
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| [evaluate(pageFunction, args)](./puppeteer.jshandle.evaluate.md) | | Evaluates the given function with the current handle as its first argument. |
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| [evaluateHandle(pageFunction, args)](./puppeteer.jshandle.evaluatehandle.md) | | Evaluates the given function with the current handle as its first argument. |
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| [getProperties()](./puppeteer.jshandle.getproperties.md) | | Gets a map of handles representing the properties of the current handle. |
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| [getProperty(propertyName)](./puppeteer.jshandle.getproperty.md) | | Fetches a single property from the referenced object. |
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| [getProperty(propertyName)](./puppeteer.jshandle.getproperty_1.md) | | |
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| [jsonValue()](./puppeteer.jshandle.jsonvalue.md) | | |
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| [remoteObject()](./puppeteer.jshandle.remoteobject.md) | | Provides access to the \[Protocol.Runtime.RemoteObject\](https://chromedevtools.github.io/devtools-protocol/tot/Runtime/\#type-RemoteObject) backing this handle. |
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| [toString()](./puppeteer.jshandle.tostring.md) | | Returns a string representation of the JSHandle. |
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