{"ScriptPreparationCode":"var arr1 = [];\r\nvar arr2 = [];\r\nfor (var i = 0; i \u003C 1000; i\u002B\u002B) {\r\n arr1.push(i);\r\n arr2.push(i\u002B1000);\r\n}","TestCases":[{"Name":"concat","Code":"var result = arr1.concat(arr2);","IsDeferred":false},{"Name":"spread","Code":"var result = [...arr1, ...arr2]","IsDeferred":false}]}