{"ScriptPreparationCode":"var obj = (new Array(1000)).fill(null).reduce((prev, newVal) =\u003E {prev[Math.random() \u002B \u0027\u0027] = Math.random() \u002B \u0027\u0027; return prev; }, { sausage: \u0027tst\u0027 });\r\nvar array = Object.keys(obj);\r\nvar set = new Set(array);","TestCases":[{"Name":"Includes","Code":"array.includes(\u0027sausage\u0027)","IsDeferred":false},{"Name":"Object[key]","Code":"obj[\u0027sausage\u0027]","IsDeferred":false},{"Name":"Set.has(key)","Code":"set.has(\u0027sausage\u0027)","IsDeferred":false}]}