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fix(useMap): more stringent type

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This commit is contained in:
Xiao 2019-05-12 13:11:19 +08:00
parent 5fe7171881
commit 7bbbe47a58
1 changed files with 14 additions and 13 deletions
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27
src/useMap.ts
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@ -1,27 +1,28 @@
import { useState } from 'react';
export interface Actions<K, V> {
get: (key: K) => any;
set: (key: K, value: V) => void;
remove: (key: K) => void;
export interface Actions<T extends object> {
get: <K extends keyof T>(key: K) => T[K];
set: <K extends keyof T>(key: K, value: T[K]) => void;
remove: <K extends keyof T>(key: K) => void;
reset: () => void;
}
const useMap = <T extends { [key: string]: any }>(initialMap: any = {}): [T, Actions<string, any>] => {
const [map, set] = useState<T>(initialMap as any);
const useMap = <T extends object = any>(initialMap: T = {} as T): [T, Actions<T>] => {
const [map, set] = useState<T>(initialMap);
return [
map,
{
get: (key: string) => map[key],
set: (key: string, entry: any) =>
get: (key: keyof T) => map[key as string],
set: <K extends keyof T>(key: K, entry: T[K]) => {
set({
...(map as any),
...map,
[key]: entry,
}),
remove: (key: string) => {
const { [key]: omit, ...rest } = map as any;
set(rest);
});
},
remove: (key: keyof T) => {
const { [key]: omit, ...rest } = map;
set(rest as T);
},
reset: () => set(initialMap),
},