{"ScriptPreparationCode":"arr = Array.from({length: 1000}, () =\u003E Math.floor(Math.random() * 40));","TestCases":[{"Name":"push","Code":"arr.reduce((acc,cur)=\u003E{\r\n const key = cur%10;\r\n acc[key]? acc[key].push(cur) : acc[key] = [cur]\r\n return acc; \r\n},{})","IsDeferred":false},{"Name":"spread","Code":"arr.reduce((acc,cur)=\u003E{\r\n const key = cur%10;\r\n acc[key] = acc[key]? [...acc[key],cur] : [cur]\r\n return acc; \r\n},{})","IsDeferred":false}]}