{"ScriptPreparationCode":"var arr = []\r\nfor (let i = 0; i \u003C 100; i\u002B\u002B) {\r\n arr.push(i)\r\n}\r\nlet index = -1","TestCases":[{"Name":"for","Code":"function getIndex(){\r\nfor (let i = 0, len = arr.length; i \u003C len; i\u002B\u002B) {\r\n if (arr[i]===50) {\r\n return i\r\n }\r\n }\r\n}\r\n\r\nindex = getIndex()\r\n \r\n","IsDeferred":false},{"Name":"findIndex","Code":"index = arr.findIndex(t =\u003E t === 50)","IsDeferred":false}]}