| 1 | import getPrototype from './_getPrototype';
|
| 2 |
|
| 3 | /** Used for built-in method references. */
|
| 4 | var objectProto = Object.prototype;
|
| 5 |
|
| 6 | /** Used to check objects for own properties. */
|
| 7 | var hasOwnProperty = objectProto.hasOwnProperty;
|
| 8 |
|
| 9 | /**
|
| 10 | * The base implementation of `_.has` without support for deep paths.
|
| 11 | *
|
| 12 | * @private
|
| 13 | * @param {Object} object The object to query.
|
| 14 | * @param {Array|string} key The key to check.
|
| 15 | * @returns {boolean} Returns `true` if `key` exists, else `false`.
|
| 16 | */
|
| 17 | function baseHas(object, key) {
|
| 18 | // Avoid a bug in IE 10-11 where objects with a [[Prototype]] of `null`,
|
| 19 | // that are composed entirely of index properties, return `false` for
|
| 20 | // `hasOwnProperty` checks of them.
|
| 21 | return hasOwnProperty.call(object, key) ||
|
| 22 | (typeof object == 'object' && key in object && getPrototype(object) === null);
|
| 23 | }
|
| 24 |
|
| 25 | export default baseHas;
|