esnext.set.find.js
870 Bytes
'use strict';
var $ = require('../internals/export');
var IS_PURE = require('../internals/is-pure');
var anObject = require('../internals/an-object');
var bind = require('../internals/function-bind-context');
var getSetIterator = require('../internals/get-set-iterator');
var iterate = require('../internals/iterate');
// `Set.prototype.find` method
// https://github.com/tc39/proposal-collection-methods
$({ target: 'Set', proto: true, real: true, forced: IS_PURE }, {
find: function find(callbackfn /* , thisArg */) {
var set = anObject(this);
var iterator = getSetIterator(set);
var boundFunction = bind(callbackfn, arguments.length > 1 ? arguments[1] : undefined, 3);
return iterate(iterator, function (value, stop) {
if (boundFunction(value, value, set)) return stop(value);
}, { IS_ITERATOR: true, INTERRUPTED: true }).result;
}
});