4dkankan-components/packages/utils/types.ts

import { isArray, isObject } from '@vue/shared';
import { isNil } from 'lodash-unified';

export { isArray, isFunction, isObject, isString, isDate, isPromise, isSymbol } from '@vue/shared';
export { isBoolean, isNumber } from '@vueuse/core';
export { isVNode } from 'vue';

export const isUndefined = (val: any): val is undefined => val === undefined;

export const isEmpty = (val: unknown) =>
  (!val && val !== 0) ||
  (isArray(val) && val.length === 0) ||
  (isObject(val) && !Object.keys(val).length);

export const isElement = (e: unknown): e is Element => {
  if (typeof Element === 'undefined') return false;
  return e instanceof Element;
};

export const isPropAbsent = (prop: unknown): prop is null | undefined => {
  return isNil(prop);
};