no-set-state.md

Prevent usage of setState (react/no-set-state)

When using an architecture that separates your application state from your UI components (e.g. Flux), it may be desirable to forbid the use of local component state. This rule is especially helpful in read-only applications (that don't use forms), since local component state should rarely be necessary in such cases.

Rule Details

The following patterns are considered warnings:

var Hello = createReactClass({
  getInitialState: function() {
    return {
      name: this.props.name
    };
  },
  handleClick: function() {
    this.setState({
      name: this.props.name.toUpperCase()
    });
  },
  render: function() {
    return <div onClick={this.handleClick.bind(this)}>Hello {this.state.name}</div>;
  }
});

The following patterns are not considered warnings:

var Hello = createReactClass({
  render: function() {
    return <div onClick={this.props.handleClick}>Hello {this.props.name}</div>;
  }
});