Edit File: _iter-detect.js
var ITERATOR = require('./_wks')('iterator'); var SAFE_CLOSING = false; try { var riter = [7][ITERATOR](); riter['return'] = function () { SAFE_CLOSING = true; }; // eslint-disable-next-line no-throw-literal Array.from(riter, function () { throw 2; }); } catch (e) { /* empty */ } module.exports = function (exec, skipClosing) { if (!skipClosing && !SAFE_CLOSING) return false; var safe = false; try { var arr = [7]; var iter = arr[ITERATOR](); iter.next = function () { return { done: safe = true }; }; arr[ITERATOR] = function () { return iter; }; exec(arr); } catch (e) { /* empty */ } return safe; };
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