{"ScriptPreparationCode":"var arr1 = [\u0022hello\u0022, \u0022world\u0022, \u0022test\u0022];\r\nvar arr2 = [];\r\nfor (let i = 0; i \u003C 500; i\u002B\u002B) {\r\n\tarr2.push(Math.random());\r\n}\r\n","TestCases":[{"Name":"concat","Code":"arr1 = arr1.concat(arr2)","IsDeferred":false},{"Name":"push \u0026 spread","Code":"arr1.push(...arr2)","IsDeferred":false},{"Name":"spread","Code":"arr1 = [arr1, ...arr2]","IsDeferred":false}]}