day 3.js

const inputBox=document.querySelector("#input-box");
const listContainer=document.querySelector("#list-container");


function addTask() {
  if(inputBox.value === ' '){
    alert("you must write something");
  }else{
    let li=document.createElement("li");
    li.innerHTML=inputBox.value;
    listContainer.appendChild(li);
   
    let span = document.createElement("span");
    span.innerHTML= "\u00d7";
    li.appendChild(span);
  }
  inputBox.value="";
  saveData();
}

listContainer.addEventListener("click",function(e){
    if(e.target.tagName === "LI"){
        e.target.classList.toggle("checked");
        saveData();
    }else if(e.target.tagName === "SPAN"){
        e.target.parentElement.remove();
        saveData();
    }
},false);

function saveData(){
    localStorage.setItem("data",listContainer.innerHTML);
}

function showTask(){
    listContainer.innerHTML=localStorage.getItem("data");
}