feat: useAsync hook for restoring current value

Minimum number of rerenders

src/index.ts

@@ -1,4 +1,4 @@
-import {DependencyList, useEffect, useState} from 'react'
+import { DependencyList, useRef, useEffect, useState, useReducer, useMemo } from 'react'
 
 export function useAsyncMemo<T>(factory: (...args: any) => Promise<T>, deps?: DependencyList, initial?: T) {
   let [val, setVal] = useState(initial)
@@ -14,3 +14,24 @@ export function useAsyncMemo<T>(factory: (...args: any) => Promise<T>, deps?: De
 
   return val
 }
+
+export function useAsync<T>(factory: (...args: any) => Promise<T>, deps?: DependencyList, initial?: T) {
+  let forceUpdate = useReducer(x => !x, false)[1]
+  let val = useRef(initial)
+
+  useMemo(() => val.current = initial, deps)
+  useEffect(() => {
+    let pending = true
+    factory().then(res => {
+      if(pending) {
+        val.current = res
+        forceUpdate()
+      }
+    })
+    return () => {
+      pending = false
+    }
+  }, deps)
+
+  return val.current
+}