effector-reshape v1.0.0

Effector Reshape

Reshape creates multiple derived stores from one store.

Installation

npm install --save effector effector-reshape

# or

yarn add effector effector-reshape

Usage

Create original store:

import { createStore } from 'effector';

const $original = createStore<string>('Example');

Reshape it to another stores:

import { reshape } from 'effector-reshape';

const shape = reshape($original, {
  length: (string) => string.length,
  lowercase: (string) => string.toLowerCase(),
  uppercase: (string) => string.toUpperCase(),
});

Now you have three derived stores:

shape.length.watch((length) => console.log('String length:', length));
shape.lowercase.watch((lowercase) => console.log('lowercase:', lowercase));

You can simply destructure shape to consts:

import { createStore } from 'effector';
import { reshape } from 'effector-reshape';

const $user = createStore({ id: 12, name: 'Sergey', surname: 'Sova' });

const { $id, $name, $surname } = reshape($user, {
  $id: (user) => user.id,
  $name: (user) => user.name,
  $surname: (user) => user.surname,
});

$id.watch((userId) => console.log('user id', userId));