{"ScriptPreparationCode":"var arr = new Array(15000);\r\n\r\nfor (var i = 0; i \u003C 15000; i\u002B\u002B) {\r\n\tarr.fill({ id: i });\r\n}\r\n\r\nnumArr = arr.map((el, idx) =\u003E el.id = idx);\r\nvar foo = Math.floor(Math.random() * 15000);","TestCases":[{"Name":"findIndex","Code":"var index = arr.findIndex((obj) =\u003E obj.num === foo);","IsDeferred":false},{"Name":"indexOf","Code":"var index = numArr.indexOf(foo);","IsDeferred":false}]}