{"ScriptPreparationCode":"var arr = Array(100000).fill(1);","TestCases":[{"Name":"slice \u002B index","Code":"var res = arr.slice(-1)[0];","IsDeferred":false},{"Name":"array length","Code":"var res = arr[arr.length - 1];","IsDeferred":false},{"Name":"destructure","Code":"var { [[arr.length - 1]]: res } = arr;","IsDeferred":false}]}