{"ScriptPreparationCode":null,"TestCases":[{"Name":"clone and splice ","Code":"let a = new Array(1000).fill().map((_,i) =\u003E i);\r\nlet b = [...a];\r\nb.splice(500, 10, ...new Array(10).fill().map((_,i) =\u003E i*10));","IsDeferred":false},{"Name":"map","Code":"let a = new Array(1000).fill().map((_,i) =\u003E i);\r\nlet b = new Array(10).fill().map((_,i) =\u003E i*10)\r\nlet c = a.map((item, i) =\u003E i \u003E= 500 \u0026\u0026 i \u003C 510 ? b[i - 500] : item)","IsDeferred":false}]}