var ul = document.getElementById('test-list'); var webList = ['JavaScript', 'HTML', 'CSS']; for(var i=ul.children.length-1;i>=0;i--){ var check = false; alert('now i = ' + i + ul.children[i].innerText); for(var j=0;j<webList.length;j++){
if(ul.children[i].innerText==webList[j].toString()){
check = true; } } if(!check){
alert('Remove i = '+i); ul.removeChild(ul.children[i]); } }