{"ScriptPreparationCode":"var arr = new Array(15000);\r\narr.fill({ id: 0, text: \u0022test\u0022 });\r\narr = arr.map((el, idx) =\u003E el.id = idx);\r\nvar foo = Math.floor(Math.random() * 15000);","TestCases":[{"Name":"1","Code":"const index = arr.findIndex((itm) =\u003E itm.id === foo);\r\nconst newArr = [...arr];\r\narr[index] = {...arr[index], text: \u0022edittest\u0022}","IsDeferred":false},{"Name":"2","Code":"const newArr = arr.map((row, index) =\u003E {\r\n if (index === 1) {\r\n return {\r\n \t...row,\r\n \ttext: \u0022edittest\u0022\r\n }\r\n }\r\n})\r\n\r\n","IsDeferred":false}]}