{"ScriptPreparationCode":"var arr = Array.from({length: 1000});","TestCases":[{"Name":"unshift","Code":"var arr2 = [];\r\nfor (let i = 0; i \u003C arr.length; i\u002B\u002B){\r\n arr2.unshift(arr[i]);\r\n}","IsDeferred":false},{"Name":"push \u002B reverse","Code":"var arr3 = [...arr].reverse();","IsDeferred":false}]}