{"ScriptPreparationCode":"var arrayStorage = new Array(5000).fill(0).map((v, i) =\u003E ({id: i, value: i}))\r\nvar mapStorage = new Map(arrayStorage.map((entry) =\u003E [entry.id, entry]))\r\nvar newItem = {id: 25, value: 222}","TestCases":[{"Name":"Array","Code":"var index = arrayStorage.findIndex((item) =\u003E item.id === newItem.id)\r\narrayStorage = [...arrayStorage.slice(0, index), newItem, ...arrayStorage.slice(index\u002B1)]","IsDeferred":false},{"Name":"Map","Code":"mapStorage.delete(newItem.id)\r\narrayStorage = Array.from(mapStorage.values())","IsDeferred":false}]}