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eslint-plugin-no-memo-displayname

v0.0.1

Published

Eslint plugin that helps to improve debugging components wrapped by React.memo()

Downloads

914

Readme

eslint-plugin-no-memo-displayname

Eslint plugin that helps to improve debugging components wrapped by React.memo()

Motivation

alt text

Bad

const ReactMemoComponent = () => null;
const ReactMemo = React.memo(ReactMemoComponent);
ReactMemo.displayName = "ReactMemo";

const ReactMemoComponent = React.memo(() => null);
ReactMemoComponent.displayName = "ReactMemoComponent";

const ReactMemoTSComponent = React.memo < {} > (() => null);
ReactMemoTSComponent.displayName = "ReactMemoTSComponent";

Good

const ReactMemoComponent = () => null;
ReactMemoComponent.displayName = "ReactMemoComponent";
const ReactMemo = React.memo(ReactMemoComponent);

// if don't specify displayName it will inherit name from the variable
const ReactMemoComponent = () => null;
const ReactMemo = React.memo(ReactMemoComponent);

// or function name
const ReactMemoComponent = React.memo(function ReactMemoComponent() {
  return null;
});

Installation

You'll first need to install ESLint:

$ npm i eslint --save-dev

Next, install eslint-plugin-no-memo-displayname:

$ npm install eslint-plugin-no-memo-displayname --save-dev

If you want to make sure that all your components have proper displayName I highly recommend to use react/display-name rule from eslint-plugin-react.

Note: If you installed ESLint globally (using the -g flag) then you must also install eslint-plugin-no-memo-displayname globally.

LICENSE

MIT