You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
17 lines
580 B
17 lines
580 B
4 years ago
|
var $ = require('../internals/export');
|
||
|
|
var getCompositeKeyNode = require('../internals/composite-key');
|
||
|
|
var getBuiltIn = require('../internals/get-built-in');
|
||
|
|
var create = require('../internals/object-create');
|
||
|
|
|
||
|
|
var initializer = function () {
|
||
|
|
var freeze = getBuiltIn('Object', 'freeze');
|
||
|
|
return freeze ? freeze(create(null)) : create(null);
|
||
|
|
};
|
||
|
|
|
||
|
|
// https://github.com/tc39/proposal-richer-keys/tree/master/compositeKey
|
||
|
|
$({ global: true }, {
|
||
|
|
compositeKey: function compositeKey() {
|
||
|
|
return getCompositeKeyNode.apply(Object, arguments).get('object', initializer);
|
||
|
|
}
|
||
|
|
});
|