Is a List Sorted

/*
Is a List Sorted?
Write a program that checks if a list is already sorted. For a list to be
sorted, the next element must NOT be smaller than the previous one.

Input
On the first line - you will receive a number N.
On the next N lines, you will receive a list of numbers, separated by a comma
Output
There are N lines of output
for each list you receive, print 'true' if sorted or 'false' otherwise.
Constraints
1 <= N <= 10
1 <= list.length <= 20
Input
3
1,2,3,4,5
1,2,8,9,9
1,2,2,3,2
Output
true
true
false
 */
let input = ['3',
    '1,2,3,4,5',
    '1,2,8,9,9',
    '1,2,2,3,2'
];
let print = this.print || console.log;
let gets = this.gets || ((arr, index) => () => arr[index++])(input, 0);

let arrNum = +gets();
// console.log(arrNum);
let arr = [];
let result = '';

for (let i = 1; i <= arrNum; i++) {
    arr = gets().split(',').map(Number);

    for (let j = 0; j <= arr.length - 2; j++) {
        if (arr[j] <= arr[j + 1]) {
            result = "true";
        } else {
            result = "false";
            break;
        }

    }
    console.log(result);
}