@planjs/utils/es/is/is-empty.js

🔧 Common tools collection

import { isArrayLike } from './is-Array';
import getType from './get-type';
import isPrototype from './is-Prototype';
import isArguments from './is-Arguments';
import isTypedArray from './is-TypedArray';
var hasOwnProperty = Object.prototype.hasOwnProperty;
/**
 * 检查是否空对象
 * @param value
 * @category Is
 */

function isEmpty(value) {
  if (value == null) {
    return true;
  } // array


  if (isArrayLike(value) && (Array.isArray(value) || typeof value === 'string' || isTypedArray(value) || isArguments(value))) {
    return !value.length;
  } // map


  var type = getType(value);

  if (type === 'Map' || type === 'Set') {
    return !value.size;
  } // object


  if (isPrototype(value)) {
    return !Object.keys(value).length;
  }

  for (var key in value) {
    if (hasOwnProperty.call(value, key)) {
      return false;
    }
  }

  return true;
}

export default isEmpty;