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'use strict';
var $ = require('../internals/export');
var call = require('../internals/function-call');
var anObject = require('../internals/an-object');
var aCallable = require('../internals/a-callable');
var $TypeError = TypeError;
// `Set.prototype.update` method
// https://github.com/tc39/proposal-collection-methods
$({ target: 'Map', proto: true, real: true, forced: true }, {
update: function update(key, callback /* , thunk */) {
var map = anObject(this);
var get = aCallable(map.get);
var has = aCallable(map.has);
var set = aCallable(map.set);
var length = arguments.length;
aCallable(callback);
var isPresentInMap = call(has, map, key);
if (!isPresentInMap && length < 3) {
throw $TypeError('Updating absent value');
}
var value = isPresentInMap ? call(get, map, key) : aCallable(length > 2 ? arguments[2] : undefined)(key, map);
call(set, map, key, callback(value, key, map));
return map;
}
});