{"ScriptPreparationCode":"let arr = new Array(15000);\r\narr.fill({\r\n id: 0,\r\n stuff: \u0022stuff\u0022\r\n});\r\narr = arr.map((el, idx) =\u003E ({\r\n ...el,\r\n id: idx\r\n}));\r\nlet foo = arr.find((el) =\u003E el.id === Math.floor(Math.random() * 15000));","TestCases":[{"Name":"findIndex","Code":"let index = arr.findIndex((el) =\u003E el === foo);","IsDeferred":false},{"Name":"indexOf","Code":"let index = arr.indexOf(foo);","IsDeferred":false}]}