{"ScriptPreparationCode":"var arr1 = [];\r\nfor(let i = 0; i \u003C 100000; i\u002B\u002B) {\r\n arr1.push(i.toString());\r\n}\r\n\r\nvar arr2 = [];\r\nfor(let i = 9999; i \u003E= 0; i--) {\r\n arr2.push(i.toString());\r\n}","TestCases":[{"Name":"Lodash","Code":"const notInArr2 = _.difference(arr1, arr2)","IsDeferred":false},{"Name":"Set \u0026 Filter","Code":"const arr2Set = new Set(arr2);\r\n\r\nconst notInArr2 = arr1.filter(value =\u003E !arr2Set.has(value));","IsDeferred":false}]}