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4 years ago
'use strict';
var $ = require('../internals/export');
var IS_PURE = require('../internals/is-pure');
var anObject = require('../internals/an-object');
var aFunction = require('../internals/a-function');
var iterate = require('../internals/iterate');
// `Set.prototype.isSupersetOf` method
// https://tc39.github.io/proposal-set-methods/#Set.prototype.isSupersetOf
$({ target: 'Set', proto: true, real: true, forced: IS_PURE }, {
isSupersetOf: function isSupersetOf(iterable) {
var set = anObject(this);
var hasCheck = aFunction(set.has);
return !iterate(iterable, function (value) {
if (hasCheck.call(set, value) === false) return iterate.stop();
}).stopped;
}
});