Does Playwright Test support globalThis? (typescript/javascript)

Does Playwright Test support globalThis? (TypeScript/JavaScript)

When working with Playwright Test, you may come across the need to access the globalThis object. The globalThis object provides a way to access the global scope, regardless of the environment (browser or Node.js). However, due to the differences in how Playwright Test runs tests, there are some considerations to keep in mind.

By default, Playwright Test runs tests in a browser context using the Playwright library. In this context, the globalThis object is not available. If you try to access it directly, you will encounter an error.

However, there are a couple of workarounds to access the globalThis object in Playwright Test:

1. Using the window object

In a browser context, you can access the globalThis object through the window object. The window object represents the global scope in a browser environment.

// TypeScript
const globalThisObject = (window as any).globalThis;

// JavaScript
const globalThisObject = window.globalThis;

This code snippet demonstrates how to access the globalThis object using the window object. By casting window as any in TypeScript, you can access the globalThis property.

2. Using the global object in Node.js

In a Node.js context, you can access the globalThis object through the global object. The global object represents the global scope in a Node.js environment.

// TypeScript/JavaScript
const globalThisObject = global.globalThis;

This code snippet demonstrates how to access the globalThis object using the global object in Node.js. You can directly access the globalThis property.

It’s important to note that the availability of the globalThis object may vary depending on the version of Playwright Test and the environment you are running your tests in. Always refer to the Playwright Test documentation and the specific environment requirements for the most up-to-date information.

In conclusion, while Playwright Test does not directly support the globalThis object, you can still access it using the window object in a browser context or the global object in a Node.js context. These workarounds allow you to access the global scope and utilize the globalThis object as needed in your Playwright Test scripts.


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