{"ScriptPreparationCode":"var arr = new Array(15000);\r\narr.fill({ id: 0 });\r\narr = arr.map((el, idx) =\u003E el.id = idx);\r\nvar recId = Math.floor(Math.random() * 15000);","TestCases":[{"Name":"findIndex","Code":"var index = arr.findIndex((num) =\u003E num === recId);","IsDeferred":false},{"Name":"indexOf","Code":"var index = arr.indexOf(recId);","IsDeferred":false},{"Name":"filter","Code":"var index = arr.filter((obj) =\u003E obj.id === recId);","IsDeferred":false},{"Name":"find","Code":"var index = arr.find((obj) =\u003E obj.id === recId);","IsDeferred":false}]}