import { Page } from "https://deno.land/x/fresh@1.4.1/tests/deps.ts";
Examples
Example 1
Example 1
const aHandle = await page.evaluateHandle('document');
JSHandle instances can be passed as arguments to the pageFunction:
JSHandle instances can be passed as arguments to the pageFunction:
const aHandle = await page.evaluateHandle(() => document.body);
const resultHandle = await page.evaluateHandle(
body => body.innerHTML,
aHandle
);
console.log(await resultHandle.jsonValue());
await resultHandle.dispose();
Most of the time this function returns a JSHandle,
but if pageFunction returns a reference to an element,
you instead get an ElementHandle back:
Example 3
Example 3
const button = await page.evaluateHandle(() =>
document.querySelector('button')
);
// can call `click` because `button` is an `ElementHandle`
await button.click();
The TypeScript definitions assume that evaluateHandle returns
a JSHandle, but if you know it's going to return an
ElementHandle, pass it as the generic argument:
const button = await page.evaluateHandle<ElementHandle>(...);