import { Page } from "https://deno.land/x/fresh@1.6.1/tests/deps.ts";
This method iterates the JavaScript heap and finds all objects with the given prototype.
Examples
Example 1
Example 1
// Create a Map object
await page.evaluate(() => (window.map = new Map()));
// Get a handle to the Map object prototype
const mapPrototype = await page.evaluateHandle(() => Map.prototype);
// Query all map instances into an array
const mapInstances = await page.queryObjects(mapPrototype);
// Count amount of map objects in heap
const count = await page.evaluate(maps => maps.length, mapInstances);
await mapInstances.dispose();
await mapPrototype.dispose();