no-unused-state

Rule category

Correctness.

What it does

Warns unused class component state.

Examples

Failing

import React from "react";
 
class class ExampleExample extends React.class React.Component<P = {}, S = {}, SS = any>Component {
  Example.state: {
    foo: number;
}
state = {
    foo: numberfoo: 1,
  }; // Unused
 
  Example.render(): nullrender() {
    return null;
  }
}

Passing

import React from "react";
 
class class ExampleExample extends React.class React.Component<P = {}, S = {}, SS = any>Component {
  Example.state: {
    foo: number;
}
state = {
    foo: numberfoo: 1,
  };
 
  Example.render(): numberrender() {
    return this.Example.state: {
    foo: number;
}
state.foo: numberfoo;
  }
}

no-unused-class-component-members no-useless-fragment