ExecutionContext | /mod.ts | puppeteer@16.2.0

class ExecutionContext

Deprecated

Do not use directly.

Represents a context for JavaScript execution.

import { ExecutionContext } from "https://dotland.deno.dev/x/puppeteer@16.2.0/mod.ts";

Examples

A {@link Page} can have several execution contexts:

Each {@link Frame} of a {@link Page | page} has a "default" execution context that is always created after frame is attached to DOM. This context is returned by the {@link Frame.executionContext} method.
Each Chrome extensions creates additional execution contexts to isolate their code.

Constructors

new

ExecutionContext(

client: CDPSession,

contextPayload: Protocol.Runtime.ExecutionContextDescription,

world?: IsolatedWorld,

)

Properties

_client: CDPSession

_contextId: number

_contextName: string

optional

_world: IsolatedWorld

Methods

evaluate<Params extends unknown[], Func extends EvaluateFunc<Params> = EvaluateFunc<Params>>(pageFunction: Func | string, ...args: Params): Promise<Awaited<ReturnType<Func>>>

Evaluates the given function.

evaluateHandle<Params extends unknown[], Func extends EvaluateFunc<Params> = EvaluateFunc<Params>>(pageFunction: Func | string, ...args: Params): Promise<HandleFor<Awaited<ReturnType<Func>>>>

Evaluates the given function.

Unlike {@link ExecutionContext.evaluate | evaluate}, this method returns a handle to the result of the function.

This method may be better suited if the object cannot be serialized (e.g. Map) and requires further manipulation.

frame(): Frame | null

queryObjects<Prototype>(prototypeHandle: JSHandle<Prototype>): Promise<HandleFor<Prototype[]>>

Iterates through the JavaScript heap and finds all the objects with the given prototype.

import ExecutionContext

import { ExecutionContext } from "https://dotland.deno.dev/x/puppeteer@16.2.0/mod.ts";