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Version: 22.13.1

PredefinedNetworkConditions variable

A list of pre-defined network conditions to be used with Page.emulateNetworkConditions().

Signature:

PredefinedNetworkConditions: Readonly<{
'Slow 3G': NetworkConditions;
'Fast 3G': NetworkConditions;
'Slow 4G': NetworkConditions;
'Fast 4G': NetworkConditions;
}>;

Example

import {PredefinedNetworkConditions} from 'puppeteer';
(async () => {
const browser = await puppeteer.launch();
const page = await browser.newPage();
await page.emulateNetworkConditions(PredefinedNetworkConditions['Slow 3G']);
await page.goto('https://www.google.com');
await page.emulateNetworkConditions(PredefinedNetworkConditions['Fast 3G']);
await page.goto('https://www.google.com');
await page.emulateNetworkConditions(PredefinedNetworkConditions['Slow 4G']); // alias to Fast 3G.
await page.goto('https://www.google.com');
await page.emulateNetworkConditions(PredefinedNetworkConditions['Fast 4G']);
await page.goto('https://www.google.com');
// other actions...
await browser.close();
})();