preact-arco-design/es/_util/hooks/useStateWithPromise.js

Arco Design React UI Library.

var __read = this && this.__read || function (o, n) {
  var m = typeof Symbol === "function" && o[Symbol.iterator];
  if (!m) return o;
  var i = m.call(o),
      r,
      ar = [],
      e;

  try {
    while ((n === void 0 || n-- > 0) && !(r = i.next()).done) {
      ar.push(r.value);
    }
  } catch (error) {
    e = {
      error: error
    };
  } finally {
    try {
      if (r && !r.done && (m = i["return"])) m.call(i);
    } finally {
      if (e) throw e.error;
    }
  }

  return ar;
};

import { useEffect, useState } from "preact/compat";

function useStateWithPromise(defaultVal) {
  var _a = __read(useState({
    value: defaultVal,
    resolve: function resolve(e) {
      // eslint-disable-next-line no-unused-expressions
      e;
    }
  }), 2),
      state = _a[0],
      setState = _a[1];

  useEffect(function () {
    state.resolve(state.value);
  }, [state]);
  return [state.value, function (updater) {
    return new Promise(function (resolve) {
      setState(function (prevState) {
        var nextVal = updater;

        if (typeof updater === 'function') {
          nextVal = updater(prevState.value);
        }

        return {
          value: nextVal,
          resolve: resolve
        };
      });
    });
  }];
}

export default useStateWithPromise;