effect-io-ai

Package: effect
Module: Order

Order.makeReducer

Creates a Reducer for combining Order instances, useful for aggregating orders in collections.

When to use

Use when you need a reducer that combines orders.

Details

Returns a reducer that combines orders using combine, uses alwaysEqual as the identity element for empty collections, and uses combineAll for combining collections of orders. The reducer can be used with fold operations on collections.

Example (Creating a Reducer)

import { Order } from "effect"

const reducer = Order.makeReducer<number>()
const orders = [Order.Number, Order.flip(Order.Number)]

const combined = reducer.combineAll(orders)
console.log(combined(1, 2)) // -1 (uses first order)

See

• combine to combine two orders
• combineAll to combine multiple orders
• Reducer for reducing orders as a collection operation

Signature

declare const makeReducer: <A>() => Reducer.Reducer<Order<A>>

Source

Since v4.0.0