package.modules.esnext.weak-set.delete-all.js Maven / Gradle / Ivy

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There is a newer version: 3.39.0

'use strict';
var $ = require('../internals/export');
var aWeakSet = require('../internals/a-weak-set');
var remove = require('../internals/weak-set-helpers').remove;

// `WeakSet.prototype.deleteAll` method
// https://github.com/tc39/proposal-collection-methods
$({ target: 'WeakSet', proto: true, real: true, forced: true }, {
  deleteAll: function deleteAll(/* ...elements */) {
    var collection = aWeakSet(this);
    var allDeleted = true;
    var wasDeleted;
    for (var k = 0, len = arguments.length; k < len; k++) {
      wasDeleted = remove(collection, arguments[k]);
      allDeleted = allDeleted && wasDeleted;
    } return !!allDeleted;
  }
});