17 lines
479 B
JavaScript
17 lines
479 B
JavaScript
|
"use strict";
|
||
|
|
|
||
|
|
var iteratorSymbol = require("es6-symbol").iterator;
|
||
|
|
|
||
|
|
module.exports = function () {
|
||
|
|
var str = "🙈f", iterator, result;
|
||
|
|
if (typeof str[iteratorSymbol] !== "function") return false;
|
||
|
|
iterator = str[iteratorSymbol]();
|
||
|
|
if (!iterator) return false;
|
||
|
|
if (typeof iterator.next !== "function") return false;
|
||
|
|
result = iterator.next();
|
||
|
|
if (!result) return false;
|
||
|
|
if (result.value !== "🙈") return false;
|
||
|
|
if (result.done !== false) return false;
|
||
|
|
return true;
|
||
|
|
};
|