
Answer:
function checkOrder(arr) {
const asc = [...arr].sort();
if (arr.toString() === asc.toString()) return -1;
const desc = [...arr].sort((a,b) => b-a);
if (arr.toString() === desc.toString()) return 1;
return 0;
}
function test(arr) {
switch(checkOrder(arr)) {
 case -1:
 console.log(`${arr}: these numbers are ascending`);
 break;
 case 0:
 console.log(`${arr}: these numbers are unordered`);
 break;
 case 1:
 console.log(`${arr}: these numbers are descending`);
 break; Â
} Â
}
test([1,2,3,4]);
test([7,5,3,1]);
test([2,3,1,7]);
Explanation:
This is a solution using javascript.