react/no-is-mounted Correctness

What it does

This rule prevents using isMounted in classes.

Why is this bad?

isMounted is an anti-pattern, is not available when using classes, and it is on its way to being officially deprecated.

Examples

Examples of incorrect code for this rule:

class Hello extends React.Component {
  someMethod() {
    if (!this.isMounted()) {
      return;
    }
  }
  render() {
    return <div onClick={this.someMethod.bind(this)}>Hello</div>;
  }
}

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-is-mounted": "error"
  }
}

CLI

oxlint --deny react/no-is-mounted --react-plugin

References

• Rule Source