从数组中获取所选项目的项目

Question

I have array like this structure

["12 18:00", "15 17:30","16 12:00", "12 21:30", "9 10:30"...]

and it has unknown number of elements. I want get every hour:minute for selected element. Example: if ele=="12" then get 18:00, 21:30. Maybe array has more "12 16:30","12 13:00" etc elements. Then also get 16:30, 13:00. All get elements 18:00, 21:30, 16:30, 13:00

Help me for this solution.

Answer 1

You can do this:

const array = ["12 18:00", "15 17:30","16 12:00", "12 21:30", "9 10:30"];
const getItems = number => {
    return array.filter(item => item.split(" ")[0] === number.toString()).map(item => item.split(" ")[1])
}
console.log(getItems(12));