1 | /**
|
2 | * Checks if `value` is suitable for use as unique object key.
|
3 | *
|
4 | * @private
|
5 | * @param {*} value The value to check.
|
6 | * @returns {boolean} Returns `true` if `value` is suitable, else `false`.
|
7 | */
|
8 | function isKeyable(value) {
|
9 | var type = typeof value;
|
10 | return (type == 'string' || type == 'number' || type == 'symbol' || type == 'boolean')
|
11 | ? (value !== '__proto__')
|
12 | : (value === null);
|
13 | }
|
14 |
|
15 | export default isKeyable;
|