{"ScriptPreparationCode":"var join2 = (arr, val) =\u003E arr.reduce((str, v, i) =\u003E i ? \u0060${str}${val}${v}\u0060 : v, \u0027\u0027);\r\nvar arr1 = Array(1000).fill(null).map((x, i) =\u003E i.toString());","TestCases":[{"Name":"join","Code":"arr1.join(\u0027,\u0027);","IsDeferred":false},{"Name":"join2","Code":"join2(arr1, \u0027,\u0027);","IsDeferred":false}]}