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