npx – Command-line tool
npx – Command-line tool
npx is a command-line tool that comes with Node.js and allows users to run Node.js packages without globally installing them. In the context of Playwright, npx is commonly used to execute Playwright commands without requiring a manual setup of the Playwright CLI.
Playwright is an end-to-end testing framework for web applications. When working with Playwright, you can use npx to run Playwright commands without installing them globally on your machine.
For example, instead of installing Playwright globally using:
npm install -g playwrightYou can directly use npx to execute Playwright commands:
npx playwright testThis approach ensures that you always use the latest version of Playwright available in your project.
npx Playwright Commands
npx playwright install– Installs Playwright and browser binaries.npx playwright test– Runs Playwright tests.npx playwright codegen– Opens a browser to record user interactions.npx playwright show-report– Opens the test report in a browser.
npx Command Line Flags
| Flag | Description |
|---|---|
--headed |
Runs tests in headed mode (with visible browser UI). |
--debug |
Runs tests in debug mode with additional logs. |
--project=<name> |
Runs tests only for the specified project. |
--workers=<number> |
Specifies the number of parallel workers. |
--config=<file> |
Uses a custom Playwright configuration file. |
