feat: numberField allow null or undef

package.json

@@ -6,16 +6,16 @@
     "url": "https://github.com/MonoidDev/reform"
   },
   "private": false,
-  "version": "1.0.0-alpha.0",
+  "version": "1.0.1",
   "license": "MIT",
   "publishConfig": {
     "access": "public"
   },
   "main": "./dist/cjs/index.cjs",
   "module": "./dist/esm/index.mjs",
   "typesVersions": {
-    "*": {
-      "*": [
+    ">=4.2": {
+      ".": [
         "src/index.ts"
       ],
       "react": [
@@ -42,11 +42,10 @@
     "node": ">=10"
   },
   "scripts": {
-    "postinstall": "husky install",
     "build": "node ./esbuild.js",
     "dev": "node ./esbuild.js --watch",
     "lint": "prettier --check src/",
-    "prepare": "yarn build",
+    "prepare": "husky install && yarn build",
     "size": "size-limit",
     "analyze": "size-limit --why",
     "test": "yarn jest"

src/fields/numberField.ts

@@ -13,7 +13,10 @@ export const numberField = (
   const { message } = options;
 
   const numberType = any().refine((input) => {
-    if (typeof input === 'string' && input.trim().length === 0) {
+    if (
+      (typeof input === 'string' && input.trim().length === 0) ||
+      input == null
+    ) {
       return makeRight(undefined);
     }
 

src/types/infer.ts

@@ -3,6 +3,8 @@ import { Resolver } from './Resolver';
 
 export type AnyResolver = Resolver<any, any, any, string>;
 
+export type UnknownResolver = Resolver<unknown, unknown, unknown, string>;
+
 export type ResolverMap = {
   [K in string]: AnyResolver;
 };