PPT-MCP

'use strict'; var $TypeError = require('es-errors/type'); var IteratorComplete = require('./IteratorComplete'); var IteratorNext = require('./IteratorNext'); var isIteratorRecord = require('../helpers/records/iterator-record'); // https://262.ecma-international.org/15.0/#sec-iteratorstep module.exports = function IteratorStep(iteratorRecord) { if (!isIteratorRecord(iteratorRecord)) { throw new $TypeError('Assertion failed: `iteratorRecord` must be an Iterator Record'); // step 1 } var result = IteratorNext(iteratorRecord); // step 1 var done = IteratorComplete(result); // step 2 return done === true ? false : result; // steps 3-4 };