11 lines
329 B
JavaScript
11 lines
329 B
JavaScript
'use strict';
|
|
var $ = require('../internals/export');
|
|
var IS_PURE = require('../internals/is-pure');
|
|
var $upsert = require('../internals/map-upsert');
|
|
|
|
// `WeakMap.prototype.upsert` method
|
|
// https://github.com/thumbsupep/proposal-upsert
|
|
$({ target: 'WeakMap', proto: true, real: true, forced: IS_PURE }, {
|
|
upsert: $upsert
|
|
});
|