Page.emulateVisionDeficiency() 方法

在页面上模拟给定的视觉缺陷。

签名

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

参数

返回值：

Promise<void>

示例

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();