vantui-edit/es/form/core/useForm.js

一套适用于Taro3及React的vantui组件库

import _slicedToArray from "@babel/runtime/helpers/slicedToArray";
import { useRef, useState, useEffect } from 'react';
import FormStore from './formstore';
export default function useForm(form) {
  var defaultFormValue = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
  var formRef = useRef(null);

  var _useState = useState({}),
      _useState2 = _slicedToArray(_useState, 2),
      forceUpdate = _useState2[1];

  var isInit = useRef(false);
  useEffect(function () {
    if (formRef.current && !isInit.current && defaultFormValue) {
      formRef.current.setFields(defaultFormValue);
      forceUpdate({});
      isInit.current = true;
    }
  }, [defaultFormValue]);

  if (!formRef.current) {
    if (form) {
      formRef.current = form;
    } else {
      var formStoreCurrent = new FormStore(forceUpdate, defaultFormValue);
      formRef.current = formStoreCurrent.getForm();
    }
  }

  return formRef.current;
}