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  1. {"ast":null,"code":"// call something on iterator step with safe closing on error\nvar anObject = require('./_an-object');\n\nmodule.exports = function (iterator, fn, value, entries) {\n try {\n return entries ? fn(anObject(value)[0], value[1]) : fn(value); // 7.4.6 IteratorClose(iterator, completion)\n } catch (e) {\n var ret = iterator['return'];\n if (ret !== undefined) anObject(ret.call(iterator));\n throw e;\n }\n};","map":null,"metadata":{},"sourceType":"script"}