{"ScriptPreparationCode":"var arr = Array.from(Array(1000).keys());\r\nvar int = 0;","TestCases":[{"Name":"unshift","Code":"arr.unshift(int);","IsDeferred":false},{"Name":"splice","Code":"arr.splice(0, 0, int)","IsDeferred":false},{"Name":"spread","Code":"var newarr = [int, ...arr];","IsDeferred":false},{"Name":"concat","Code":"var newarr = [int].concat(arr);","IsDeferred":false}]}