
Research
SANDWORM_MODE: Shai-Hulud-Style npm Worm Hijacks CI Workflows and Poisons AI Toolchains
An emerging npm supply chain attack that infects repos, steals CI secrets, and targets developer AI toolchains for further compromise.
is-server-side
Advanced tools
⛔️ [DEPRECATED] Quickly determine if code is executing on the client or on the server with SSR/SSG
[!CAUTION]
This package was more a proof-of-concept for publishing a package rather than something super useful. Either way, any useful functionality was merged into next-utils long ago.
This package exports a function that, when called, will tell you if your execution environment is browser-like (e.g. Chrome or Firefox) or server-like (e.g. Node). Useful for Next.js and other fullstack/isomorphic apps.
This package includes TypeScript types and provides:
npm install is-server-side
import { isServer } from 'is-server-side'
isServer() && doServerStuff();
doOtherStuff();
Issues and pull requests are welcome! In lieu of a formal styleguide, take care to maintain the existing coding style.
Add unit tests for any new or changed functionality. Please lint and test your code!
FAQs
⛔️ [DEPRECATED] Quickly determine if code is executing on the client or on the server with SSR/SSG
The npm package is-server-side receives a total of 7 weekly downloads. As such, is-server-side popularity was classified as not popular.
We found that is-server-side demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 0 open source maintainers collaborating on the project.
Did you know?

Socket for GitHub automatically highlights issues in each pull request and monitors the health of all your open source dependencies. Discover the contents of your packages and block harmful activity before you install or update your dependencies.

Research
An emerging npm supply chain attack that infects repos, steals CI secrets, and targets developer AI toolchains for further compromise.

Company News
Socket is proud to join the OpenJS Foundation as a Silver Member, deepening our commitment to the long-term health and security of the JavaScript ecosystem.

Security News
npm now links to Socket's security analysis on every package page. Here's what you'll find when you click through.