'use strict'; // https://github.com/tc39/proposal-iterator-helpers var $ = require('../internals/export'); var iterate = require('../internals/iterate'); var aFunction = require('../internals/a-function'); var anObject = require('../internals/an-object'); $({ target: 'Iterator', proto: true, real: true }, { every: function every(fn) { anObject(this); aFunction(fn); return !iterate(this, function (value, stop) { if (!fn(value)) return stop(); }, { IS_ITERATOR: true, INTERRUPTED: true }).stopped; } });