var list = document.getElementById("test-list");

for(let i=0; i<list.children.length-1; i++)

   for(let j=i+1; j<list.children.length; j++)

       if(list.children[i].innerText > list.children[j].innerText){

            let t = list.children[i].innerText;list.children[i].innerText = list.children[j].innerText;list.children[j].innerText = t;

       }