@techmely/utils/isPlainObject/index.js

Collection of helpful JavaScript / TypeScript utils

'use strict';

/*!
 * @techmely/utils
 * Copyright(c) 2021-2024 Techmely <techmely.creation@gmail.com>
 * MIT Licensed
 */


// src/isPlainObject/index.ts
function isPlainObject(value) {
  if (!isObjectLike(value) || getTag(value) !== "[object Object]") {
    return false;
  }
  if (Object.getPrototypeOf(value) === null) {
    return true;
  }
  let proto = value;
  while (Object.getPrototypeOf(proto) !== null) {
    proto = Object.getPrototypeOf(proto);
  }
  return Object.getPrototypeOf(value) === proto;
}
function isObjectLike(value) {
  return typeof value === "object" && value !== null;
}
function getTag(value) {
  if (value == null) {
    return value === void 0 ? "[object Undefined]" : "[object Null]";
  }
  return Object.prototype.toString.call(value);
}

exports.getTag = getTag;
exports.isPlainObject = isPlainObject;