{"ScriptPreparationCode":"var a = Array(1000).fill(Math.floor(Math.random() * 9));\r\nvar b = Array(1000).fill(Math.floor(Math.random() * 9));\r\nvar c = Array(1000).fill(Math.floor(Math.random() * 9));\r\nvar d = Array(1000).fill(Math.floor(Math.random() * 9));\r\nvar username = 20","TestCases":[{"Name":"concat","Code":"a.concat(b,c,d).includes(username)","IsDeferred":false},{"Name":"plain","Code":"(a.includes(username) == false \u0026\u0026\r\nb.includes(username) == false \u0026\u0026\r\nc.includes(username) == false \u0026\u0026\r\nd.includes(username) == false)","IsDeferred":false},{"Name":"set","Code":"new Set([...a, ...b, ...c, ...d]).has(username)","IsDeferred":false}]}