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