index.js

// code to add search bar

//Auto complete code
function autocomplete(inp, arr) {
    /*the autocomplete function takes two arguments,
      the text field element and an array of possible autocompleted values:*/
    var currentFocus;
    /*execute a function when someone writes in the text field:*/
    inp.addEventListener('input', function (e) {
      var a,
        b,
        i,
        val = this.value;
      /*close any already open lists of autocompleted values*/
      closeAllLists();
      if (!val) {
        return false;
      }
      currentFocus = -1;
      /*create a DIV element that will contain the items (values):*/
      a = document.createElement('DIV');
      a.setAttribute('id', this.id + 'autocomplete-list');
      a.setAttribute('class', 'autocomplete-items');
      /*append the DIV element as a child of the autocomplete container:*/
      this.parentNode.appendChild(a);
      /*for each item in the array...*/
      for (i = 0; i < arr.length; i++) {
        /*check if the item starts with the same letters as the text field value:*/
        if (arr[i].substr(0, val.length).toUpperCase() == val.toUpperCase()) {
          /*create a DIV element for each matching element:*/
          b = document.createElement('DIV');
          /*make the matching letters bold:*/
          b.innerHTML = '<strong>' + arr[i].substr(0, val.length) + '</strong>';
          b.innerHTML += arr[i].substr(val.length);
          /*insert a input field that will hold the current array item's value:*/
          b.innerHTML += "<input type='hidden' value='" + arr[i] + "'>";
          /*execute a function when someone clicks on the item value (DIV element):*/
          b.addEventListener('click', function (e) {
            /*insert the value for the autocomplete text field:*/
            inp.value = this.getElementsByTagName('input')[0].value;
            /*close the list of autocompleted values,
                  (or any other open lists of autocompleted values:*/
            closeAllLists();
          });
          a.appendChild(b);
        }
      }
    });
    /*execute a function presses a key on the keyboard:*/
    inp.addEventListener('keydown', function (e) {
      var x = document.getElementById(this.id + 'autocomplete-list');
      if (x) x = x.getElementsByTagName('div');
      if (e.keyCode == 40) {
        /*If the arrow DOWN key is pressed,
            increase the currentFocus variable:*/
        currentFocus++;
        /*and and make the current item more visible:*/
        addActive(x);
      } else if (e.keyCode == 38) {
        //up
        /*If the arrow UP key is pressed,
            decrease the currentFocus variable:*/
        currentFocus--;
        /*and and make the current item more visible:*/
        addActive(x);
      } else if (e.keyCode == 13) {
        /*If the ENTER key is pressed, prevent the form from being submitted,*/
        e.preventDefault();
        if (currentFocus > -1) {
          /*and simulate a click on the "active" item:*/
          if (x) x[currentFocus].click();
        }
      }
    });
    function addActive(x) {
      /*a function to classify an item as "active":*/
      if (!x) return false;
      /*start by removing the "active" class on all items:*/
      removeActive(x);
      if (currentFocus >= x.length) currentFocus = 0;
      if (currentFocus < 0) currentFocus = x.length - 1;
      /*add class "autocomplete-active":*/
      x[currentFocus].classList.add('autocomplete-active');
    }
    function removeActive(x) {
      /*a function to remove the "active" class from all autocomplete items:*/
      for (var i = 0; i < x.length; i++) {
        x[i].classList.remove('autocomplete-active');
      }
    }
    function closeAllLists(elmnt) {
      /*close all autocomplete lists in the document,
        except the one passed as an argument:*/
      var x = document.getElementsByClassName('autocomplete-items');
      for (var i = 0; i < x.length; i++) {
        if (elmnt != x[i] && elmnt != inp) {
          x[i].parentNode.removeChild(x[i]);
        }
      }
    }
    /*execute a function when someone clicks in the document:*/
    document.addEventListener('click', function (e) {
      closeAllLists(e.target);
    });
  }
  
  // Get all participants from the document
  const list = document.querySelectorAll('li a');
  const participantName = [];
  list.forEach((user) => {
    participantName.push(user.textContent);
  });
  console.log(participantName);
  
  // init autocomplete
  autocomplete(document.getElementById('myInput'), participantName);
  
  document.getElementById('myInput').addEventListener("change",handelInput );
  document.getElementById('myInput').addEventListener("input",handelInput );
  
  
  function handelInput() {
      setTimeout(displayName, 300);
  }
  
  function displayName() {
      const inputEle = document.getElementById('myInput');
      const searchStr = inputEle.value.toLowerCase();
      // if(searchStr ===""){
      //     return 
      // }
      console.log(searchStr)
      const elements = document.querySelectorAll("li")
      elements.forEach(ele => {
          if(ele.textContent.toLowerCase().includes(searchStr)){
              ele.setAttribute("style","display:block");
          }else{
              ele.setAttribute("style","display:none");
  
          }
          // console.log(ele.textContent)
  
          // 
      });
  
  }