effector-vue

Effector-vue

Changelog

effector 20.1.2

• Allow typescript to refine type of payload if event.filter({fn}) got a predicate function as a callback PR

import {value createEvent} from 'effector'

const event = createEvent<string | number>()

const isString = (value: any): value is string => typeof value === 'string'
const isNumber = (value: any): value is number => typeof value === 'number'

const str = event.filter({fn: isString}) // Event<string>
const num = event.filter({fn: isNumber}) // Event<number>

str.watch(value => value.slice()) // OK now
num.watch(value => value.toFixed(2)) // OK now

• Allow typescript to refine type with is methods PR

import {value is} from 'effector'

//result has type Event<any> | void
function getEvent(obj: unknown) {
  if (is.event(obj)) return obj
  if (is.store(obj)) return obj.updates
}

• Add new fields to definition of graph nodes (discussion)