function bubbleSort(ar) {
for (let i = 0; i < ar.length; i++) {
for (let j = 0; j < ar.length - 1 - i; j++) {
if (ar[j]['value'] > ar[j + 1]['value']) {
swap(ar, j, j + 1);
}
}
}
}
function swap(ar, i, j) {
const temp = ar[i];
ar[i] = ar[j];
ar[j] = temp;
}