1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
var Symbol = require('./_Symbol'),    getRawTag = require('./_getRawTag'),    objectToString = require('./_objectToString');
/** `Object#toString` result references. */var nullTag = '[object Null]',    undefinedTag = '[object Undefined]';
/** Built-in value references. */var symToStringTag = Symbol ? Symbol.toStringTag : undefined;
/** * The base implementation of `getTag` without fallbacks for buggy environments. * * @private * @param {*} value The value to query. * @returns {string} Returns the `toStringTag`. */function baseGetTag(value) {  if (value == null) {    return value === undefined ? undefinedTag : nullTag;  }  return (symToStringTag && symToStringTag in Object(value))    ? getRawTag(value)    : objectToString(value);}
module.exports = baseGetTag;