jollywhoppers.com
Bluesky app fork with some witchin' additions 馃挮
witchsky.app
bluesky
fork
client
1import {useCallback, useRef} from 'react'
2
3type Cb = () => void
4
5export function callOnce() {
6 let ran = false
7 return function runCallbackOnce(cb: Cb) {
8 if (ran) return
9 ran = true
10 cb()
11 }
12}
13
14export function useCallOnce(cb: Cb): () => void
15export function useCallOnce(cb?: undefined): (cb: Cb) => void
16export function useCallOnce(cb?: Cb) {
17 const ran = useRef(false)
18 return useCallback(
19 (icb: Cb) => {
20 if (ran.current) return
21 ran.current = true
22 if (icb) icb()
23 else if (cb) cb()
24 },
25 [cb],
26 )
27}