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
25 lines
792 B
JavaScript
25 lines
792 B
JavaScript
'use strict';
|
|
var $ = require('../internals/export');
|
|
var aCallable = require('../internals/a-callable');
|
|
var aWeakMap = require('../internals/a-weak-map');
|
|
var aWeakKey = require('../internals/a-weak-key');
|
|
var WeakMapHelpers = require('../internals/weak-map-helpers');
|
|
|
|
var get = WeakMapHelpers.get;
|
|
var has = WeakMapHelpers.has;
|
|
var set = WeakMapHelpers.set;
|
|
|
|
// `WeakMap.prototype.getOrInsertComputed` method
|
|
// https://github.com/tc39/proposal-upsert
|
|
$({ target: 'WeakMap', proto: true, real: true, forced: true }, {
|
|
getOrInsertComputed: function getOrInsertComputed(key, callbackfn) {
|
|
aWeakMap(this);
|
|
aWeakKey(key);
|
|
aCallable(callbackfn);
|
|
if (has(this, key)) return get(this, key);
|
|
var value = callbackfn(key);
|
|
set(this, key, value);
|
|
return value;
|
|
}
|
|
});
|