实现customSort(table, criteria)函数的主体

Question

The first argument of customSort() is an array of JavaScript objects. The function should sort the array on the property given as the second argument criteria in descending order. The property is numerical only.

Will be sorted by customSort(a, 'id') as:

var a = [{ key:6}, {key:9},{key:2},{key:1},{key:12},{key:63},{key:20}, {key:25},{key:13},{key:19},{key:32},{key:70},{key:14},{key:7},{key:8}]

print(display(a, 'key'));

customSort(a, 'key');

print(display(a, 'key')); //Expected: 70,63,32,25,20,19,14,13,12,9,8,7,6,2,1

Answer 1

function customSort(table, critera) {

    var value = display(table, critera);
    var result = value.sort((a, b) = >b - a);
    return result.join(",")
}

function print(func) {
    console.log(customSort(func))
}

function display(a, key) {

    var finalvalue = [];
    for (i = 0; i < myarray.length; i++) {
        finalvalue.push(myarray[i].key);

    }

    return finalvalue;
}

var myarray = [{
    key: 6
},
{
    key: 9
},
{
    key: 2
},
{
    key: 1
},
{
    key: 12
},
{
    key: 63
},
{
    key: 20
},
{
    key: 25
},
{
    key: 13
},
{
    key: 19
},
{
    key: 32
},
{
    key: 70
},
{
    key: 14
},
{
    key: 7
},
{
    key: 8
}];

print(display(myarray, 'key'));

customSort(myarray, 'key');
print(display(myarray, 'key'));