如何使用Array.filter

Question

If I have a structure

{
    "users": {
        "John": [1 , 4, 5],
        "Max": [2, 3, 7],
        "Bill": [3, 5, 4]
    }
}

array is months arrears for 3 months. I need to print who is most of all owed by month. Example

• Bill, Max, John - for the 1st month.
• Bill, John, Max - for the 2nd month.
• and so on.

I need to do it with JS. Is there any simple way to use Array.filter?

Answer 1

 var users = [ {name: "John", values: [1 , 4, 5]}, {name: "Max", values: [2, 3, 7]}, {name : "Bill", values: [3, 5, 4]} ] function sortByMonth(monthNumber) { return users.sort(function(a, b) { return b.values[monthNumber] - a.values[monthNumber];}); } 

This should be what you're looking for, you have to actually change your values into an array but then you can sort by amount owed per month with the sortByMonth function.