@yhiot/utils/lib/getType.js

基本工具集

"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.getType = getType;

var _typeof2 = _interopRequireDefault(require("@babel/runtime/helpers/typeof"));

var toString = Object.prototype.toString;

function getType(val) {
  switch (toString.call(val)) {
    case '[object Date]':
      return 'date';

    case '[object RegExp]':
      return 'regexp';

    case '[object Arguments]':
      return 'arguments';

    case '[object Array]':
      return 'array';

    case '[object Error]':
      return 'error';

    case '[object AsyncFunction]':
      return 'async';

    default:
      break;
  }

  if (val === null) return 'null';
  if (val === undefined) return 'undefined'; // eslint-disable-next-line

  if (val !== val) return 'nan';
  if (val && val.nodeType === 1) return 'element';
  if (isBuffer(val)) return 'buffer';
  val = val.valueOf ? val.valueOf() : Object.prototype.valueOf.apply(val);
  return (0, _typeof2.default)(val);
} // code borrowed from https://github.com/feross/is-buffer/blob/master/index.js


function isBuffer(obj) {
  return !!(obj != null && (obj._isBuffer || obj.constructor && typeof obj.constructor.isBuffer === 'function' && obj.constructor.isBuffer(obj)));
}