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- 'use strict';
- var $ = require('../internals/export');
- var aCallable = require('../internals/a-callable');
- var MapHelpers = require('../internals/map-helpers');
- var IS_PURE = require('../internals/is-pure');
- var get = MapHelpers.get;
- var has = MapHelpers.has;
- var set = MapHelpers.set;
- // `Map.prototype.getOrInsertComputed` method
- // https://tc39.es/ecma262/#sec-map.prototype.getorinsertcomputed
- $({ target: 'Map', proto: true, real: true, forced: IS_PURE }, {
- getOrInsertComputed: function getOrInsertComputed(key, callbackfn) {
- var hasKey = has(this, key);
- aCallable(callbackfn);
- if (hasKey) return get(this, key);
- // CanonicalizeKeyedCollectionKey
- if (key === 0 && 1 / key === -Infinity) key = 0;
- var value = callbackfn(key);
- set(this, key, value);
- return value;
- }
- });
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