require-optimization.md

Enforce React components to have a shouldComponentUpdate method (react/require-optimization)

This rule prevents you from creating React components without declaring a shouldComponentUpdate method.

Rule Details

Examples of incorrect code for this rule:

class YourComponent extends React.Component {

}

createReactClass({
});

Examples of correct code for this rule:

class YourComponent extends React.Component {
  shouldComponentUpdate () {
    return false;
  }
}

createReactClass({
  shouldComponentUpdate: function () {
    return false;
  }
});

createReactClass({
  mixins: [PureRenderMixin]
});

@reactMixin.decorate(PureRenderMixin)
createReactClass({

});

Rule Options

...
"react/require-optimization": [<enabled>, { allowDecorators: [<allowDecorator>] }]
...

• enabled: for enabling the rule. 0=off, 1=warn, 2=error. Defaults to 0.
• allowDecorators: optional array of decorators names to allow validation.

allowDecorators

Sets the allowed names of decorators. If the variable is present in the chain of decorators, it validates

Examples of correct code for this rule:

// ['pureRender']
@pureRender
class Hello extends React.Component {}

Example

...
"react/require-optimization": [2, {allowDecorators: ['customDecorators']}]
...