{"ScriptPreparationCode":"var arr = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]\r\nvar test = []\r\nfor (let i = 0; i \u003C 1000; i\u002B\u002B) {\r\n test.push(arr)\r\n}","TestCases":[{"Name":"flatMap","Code":"var flatten = test.flatMap((x) =\u003E x)","IsDeferred":false},{"Name":"concat","Code":"var catten = []\r\nfor (let k = 0; k \u003C test.length; k\u002B\u002B) {\r\n catten = catten.concat(test[k])\r\n}","IsDeferred":false}]}