Page.emulateVisionDeficiency() 方法

🌐 Page.emulateVisionDeficiency() method

模拟页面上给定的视力缺陷。

🌐 Simulates the given vision deficiency on the page.

语法

🌐 Signature

class Page {
  abstract emulateVisionDeficiency(
    type?: Protocol.Emulation.SetEmulatedVisionDeficiencyRequest['type'],
  ): Promise<void>;
}

参数

🌐 Parameters

范围 🌐 Parameter	类型 🌐 Type	描述 🌐 Description
type	Protocol.Emulation.SetEmulatedVisionDeficiencyRequest['类型'] 🌐 Protocol.Emulation.SetEmulatedVisionDeficiencyRequest['type']	（可选） 要模拟的缺陷类型，或使用 'none' 重置。 🌐 (Optional) the type of deficiency to simulate, or 'none' to reset.

返回:

Promise<void>

示例

🌐 Example

import puppeteer from 'puppeteer';

const browser = await puppeteer.launch();
const page = await browser.newPage();
await page.goto('https://v8.dev/blog/10-years');

await page.emulateVisionDeficiency('achromatopsia');
await page.screenshot({path: 'achromatopsia.png'});

await page.emulateVisionDeficiency('deuteranopia');
await page.screenshot({path: 'deuteranopia.png'});

await page.emulateVisionDeficiency('blurredVision');
await page.screenshot({path: 'blurred-vision.png'});

await page.emulateVisionDeficiency('reducedContrast');
await page.screenshot({path: 'reduced-contrast.png'});

await browser.close();