# create-reducer

**Repository Path**: mirrors_gaearon/create-reducer

## Basic Information

- **Project Name**: create-reducer
- **Description**: Create reducer from object of action handlers for use with redux.
- **Primary Language**: Unknown
- **License**: ISC
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 0
- **Created**: 2020-08-08
- **Last Updated**: 2026-07-04

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

# create-reducer

Create a redux reducer from an object of action handling functions, keyed
by the actions they handle. Has `createReducer.compose(fns)` helper function
to combine multiple action handlers into a single action.
Big thanks to dlmanning, our conversations lead me here.

```javascript
var createReducer = require('create-reducer')

// setup handlers, object keys for action types
var handlers =
  { add: add
  , multiply: multiply
  // compose handler functions together for compound actions.
  , addThenMultiply: createReducer.compose(add, multiply)
  }

// create a reducer from the handlers, this is normaly what would be exported.
var reducer = createReducer(handlers)

// actual action handling functions, down out of the way.
function add (state, action) {
  state.num += action.num
  return state
}

function multiply (state, action) {
  state.num *= action.num
  return state
}
```