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app.js
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//selectors
const todoInput = document.querySelector('.todo-input');
const todoButton = document.querySelector('.todo-button');
const todoList = document.querySelector('.todo-list');
const filter = document.querySelector('.filter-todo');
//event listeners
todoButton.addEventListener("click", addTodo)
todoList.addEventListener('click', deleteTodo)
filter.addEventListener('click', filterTodo)
document.addEventListener('DOMContentLoaded', getTodos)
//functions
function addTodo(event) {
event.preventDefault()
//todo component
const todoDiv = document.createElement("div");
todoDiv.classList.add("todo");
//create li
const newTodo = document.createElement('li');
newTodo.innerText = todoInput.value;
newTodo.classList.add('todo-item');
todoDiv.appendChild(newTodo)
//add todo to local storage
saveLocalTodos(todoInput.value)
//completed button
const completedButton = document.createElement('button');
completedButton.innerHTML = '<i class="fas fa-check"></i>';
completedButton.classList.add("completed-btn");
todoDiv.appendChild(completedButton);
//delete Button
const deleteButton = document.createElement('button');
deleteButton.innerHTML = '<i class="fas fa-trash"></i>';
deleteButton.classList.add("delete-btn");
todoDiv.appendChild(deleteButton);
//add the whole thing to the main tofo list
todoList.appendChild(todoDiv);
//clear todo input value
todoInput.value = '';
}
function deleteTodo(e) {
const item = e.target;
if (item.classList[0] === 'delete-btn') {
const todo = item.parentElement;
todo.classList.add('fall');
removeLocalStorage(todo)
todo.addEventListener('transitionend', function () {
todo.remove();
})
}
if (item.classList[0] === 'completed-btn') {
const todo = item.parentElement;
todo.classList.toggle('completed');
}
}
function filterTodo(e) {
const todos = todoList.childNodes;
todos.forEach(function(todo) {
switch (e.target.value) {
case "all":
todo.style.display = "flex";
break;
case "completed":
if (todo.classList.contains("completed")) {
todo.style.display = "flex";
} else {
todo.style.display = "none";
}
break;
case "uncompleted":
if (!todo.classList.contains("completed")) {
todo.style.display = "flex";
} else {
todo.style.display = "none";
}
break;
}
})
}
function saveLocalTodos(todo) {
//check - do i already have things in it.
let todos;
if (localStorage.getItem('todos') === null) {
todos = [];
}
else {
todos = JSON.parse(localStorage.getItem('todos'));
}
todos.push(todo);
localStorage.setItem('todos', JSON.stringify(todos));
}
function getTodos() {
let todos;
if (localStorage.getItem('todos') === null) {
todos = [];
}
else {
todos = JSON.parse(localStorage.getItem('todos'));
}
todos.forEach(function (todo) {
const todoDiv = document.createElement("div");
todoDiv.classList.add("todo");
//create li
const newTodo = document.createElement('li');
newTodo.innerText = todo;
newTodo.classList.add('todo-item');
todoDiv.appendChild(newTodo)
//completed button
const completedButton = document.createElement('button');
completedButton.innerHTML = '<i class="fas fa-check"></i>';
completedButton.classList.add("completed-btn");
todoDiv.appendChild(completedButton);
//delete Button
const deleteButton = document.createElement('button');
deleteButton.innerHTML = '<i class="fas fa-trash"></i>';
deleteButton.classList.add("delete-btn");
todoDiv.appendChild(deleteButton);
//add the whole thing to the main tofo list
todoList.appendChild(todoDiv);
})
}
function removeLocalStorage(todo) {
let todos = JSON.parse(localStorage.getItem('todos'));
const todoIndex = todos.indexOf(todo.children[0].innerText);
todos.splice(todoIndex, 1);
localStorage.setItem("todos",JSON.stringify(todos));
}