react/no-invalid-browser-call

Reports a browser() result from react-dom that is discarded or thrown. Enabled as an error in recommended and all.

React uses the value returned by browser() as an opaque signal. Calling it by itself has no effect, and throwing it does not activate a Suspense boundary. See the React browser reference.

Incorrect

import { browser } from 'react-dom';

browser();
void browser();
(browser(), continueRendering());
throw browser();

Correct

import { browser } from 'react-dom';
import { use } from 'react';

use(browser());
const clientOnly = browser();
abort(browser());

Analysis boundary

The rule recognizes named and namespace imports, aliases, and static CommonJS imports from react-dom. It reports a discarded expression statement, void operand, statically discarded sequence operand, or throw argument. Other uses are left alone because the opaque result can be stored, passed to use, returned, or supplied to an abort operation.

There is no automatic fix.