{"ScriptPreparationCode":"var MyArr = Array.from({length: 40}, () =\u003E Math.floor(Math.random() * 40));\r\nvar MyArr2 = Array.from({length: 40}, () =\u003E Math.floor(Math.random() * 40));\r\nvar myCopy = null;\r\n","TestCases":[{"Name":"spread operator","Code":"myCopy = [...MyArr, ...MyArr2]","IsDeferred":false},{"Name":"concat","Code":"myCopy = MyArr.concat(MyArr2)","IsDeferred":false},{"Name":"flat","Code":"myCopy = [MyArr, MyArr2].flat()","IsDeferred":false},{"Name":"push","Code":"myCopy = MyArr.push(MyArr2)","IsDeferred":false}]}