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react/no-render-return-value Correctness

What it does

This rule will warn you if you try to use the ReactDOM.render() return value.

Why is this bad?

Using the return value from ReactDOM.render() is a legacy feature and should not be used.

Note that ReactDOM.renderhas been removed entirely in React 19 and so should generally not be used.

Examples

Examples of incorrect code for this rule:

var inst = ReactDOM.render(<App />, document.body);
function render() {
  return ReactDOM.render(<App />, document.body);
}

Examples of correct code for this rule:

ReactDOM.render(<App />, document.body);

How to use

To enable this rule using the config file or in the CLI, you can use:

Config (.oxlintrc.json)

{
  "plugins": ["react"],
  "rules": {
    "react/no-render-return-value": "error"
  }
}

Config (oxlint.config.ts)

import { defineConfig } from "oxlint";

export default defineConfig({
  plugins: ["react"],
  rules: {
    "react/no-render-return-value": "error",
  },
});

CLI

oxlint --deny react/no-render-return-value --react-plugin

Version

This rule was added in v0.0.15.

References

• Rule Source
• Upstream rule docs
• Open rule in Oxc Playground