Playing around with Java Script

Math.round(93.5);

94

const removeDuplicates = (arr) => [...new Set(arr)]

removeDuplicates([31, 56, 12, 31, 45, 12, 31])
//[ 31, 56, 12, 45 ]

[ 31, 56, 12, 45 ]

const dayDif = (date1, date2) => Math.ceil(Math.abs(date1.getTime() - date2.getTime()) / 86400000)

dayDif(new Date("2022-09-30"), new Date("2022-10-13"))

13