{"ScriptPreparationCode":"var arr = Array(10_000).fill({id: \u0022ajdi\u0022})","TestCases":[{"Name":"reduce with concat","Code":"arr.reduce((acc, x) =\u003E acc.push(x.id), [])","IsDeferred":false},{"Name":"flatMap","Code":"arr.flatMap(x =\u003E x.id)","IsDeferred":false}]}