7f2dd5260f
- Complete React app with 7 developer tools - JSON Tool with visual structured editor - Serialize Tool with visual structured editor - URL, Base64, CSV/JSON, Beautifier, Diff tools - Responsive navigation with dropdown menu - Dark/light mode toggle - Mobile-responsive design with sticky header - All tools working with copy/paste functionality
28 lines
922 B
JavaScript
28 lines
922 B
JavaScript
'use strict';
|
|
var $ = require('../internals/export');
|
|
var aCallable = require('../internals/a-callable');
|
|
var aMap = require('../internals/a-map');
|
|
var MapHelpers = require('../internals/map-helpers');
|
|
|
|
var $TypeError = TypeError;
|
|
var get = MapHelpers.get;
|
|
var has = MapHelpers.has;
|
|
var set = MapHelpers.set;
|
|
|
|
// `Map.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 = aMap(this);
|
|
var length = arguments.length;
|
|
aCallable(callback);
|
|
var isPresentInMap = has(map, key);
|
|
if (!isPresentInMap && length < 3) {
|
|
throw new $TypeError('Updating absent value');
|
|
}
|
|
var value = isPresentInMap ? get(map, key) : aCallable(length > 2 ? arguments[2] : undefined)(key, map);
|
|
set(map, key, callback(value, key, map));
|
|
return map;
|
|
}
|
|
});
|