ubdate

node_modules/es-abstract/2015/GetIterator.js

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+'use strict';
+
+var GetIntrinsic = require('get-intrinsic');
+
+var $TypeError = GetIntrinsic('%TypeError%');
+
+var getIteratorMethod = require('../helpers/getIteratorMethod');
+var AdvanceStringIndex = require('./AdvanceStringIndex');
+var Call = require('./Call');
+var GetMethod = require('./GetMethod');
+var IsArray = require('./IsArray');
+var Type = require('./Type');
+
+// https://ecma-international.org/ecma-262/6.0/#sec-getiterator
+
+module.exports = function GetIterator(obj, method) {
+	var actualMethod = method;
+	if (arguments.length < 2) {
+		actualMethod = getIteratorMethod(
+			{
+				AdvanceStringIndex: AdvanceStringIndex,
+				GetMethod: GetMethod,
+				IsArray: IsArray,
+				Type: Type
+			},
+			obj
+		);
+	}
+	var iterator = Call(actualMethod, obj);
+	if (Type(iterator) !== 'Object') {
+		throw new $TypeError('iterator must return an object');
+	}
+
+	return iterator;
+};