código lixo

let inputS = document.querySelector('.filterPosts');
let inputSearch = inputS.value.toUpperCase();
let pList = document.querySelector('.postsList');
let allLi = document.getElementsByTagName('li');

let requestURL = 'Posts.json';
let request = new XMLHttpRequest();
request.open('GET', requestURL);

request.responseType = 'json'; request.send();

request.onload = function() {
  let posts = request.response;
  showPosts(posts);
}

function showPosts(jsonObj) {
  let posts = jsonObj['posts'];
  for (let i = 0; i < posts.length; i++) {

     let listContent = document.createElement('a');
     listContent.textContent = posts[i].name;
     listContent.href = posts[i].url;

      let liItem = document.createElement('li');
      liItem.appendChild(listContent);
      pList.appendChild(liItem);

  }
}



function search() {
  for (i = 0; i <  allLi.length; i++) {
    txtValue = allLi[i].textContent || allLi[i].innerText;

    if (txtValue.toUpperCase().indexOf(inputSearch) > -1) {
      console.log('tem');
      allLi[i].style.display = '';
    } else {
      console.log('nao tem');
      allLi[i].style.display = 'none';
    }
  }
}


  inputS.addEventListener('keyup',function(){
    search();
  });