script.js

const addForm = document.querySelector('.add');
const list= document.querySelector('.todos');
const search =document.querySelector('.search input');

const generateTemplate= todo=>{
    const html=`
    <li class="list-group-item d-flex justify-content-between align-items-center">
          <span>${todo}</span>
          <i class="far fa-trash-alt delete"></i>
    </li>
    `;
    list.innerHTML+=html;
}

addForm.addEventListener('submit',e =>{
    e.preventDefault();
    const todo=addForm.add.value.trim();
    if(todo.length>0){
        generateTemplate(todo)
        addForm.reset();
    };
    
})

list.addEventListener('click',e=>{
    if(e.target.classList.contains('delete')){
        e.target.parentElement.remove();
    }
})

const filterTodos = term =>{
    Array.from(list.children)
    .filter(todo => !todo.textContent.toLowerCase().includes(term))
    .forEach(todo =>todo.classList.add('filtered'));

    Array.from(list.children)
    .filter(todo => todo.textContent.toLowerCase().includes(term))
    .forEach(todo =>todo.classList.remove('filtered'));
}

search.addEventListener('keyup',()=>{
    const term=search.value.trim().toLowerCase();
    filterTodos(term);
})