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app.js
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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
document.addEventListener("DOMContentLoaded", getTodos);
todoButton.addEventListener("click", addTodo);
todoList.addEventListener("click", deleteCheck);
filter.addEventListener("change", filterTodo);
// Functions
function createComponents(value) {
// Create div
const todoDiv = document.createElement("div");
todoDiv.classList.add("todo");
// Create li
const newTodo = document.createElement("li");
newTodo.innerText = value;
newTodo.classList.add("todo-item");
todoDiv.appendChild(newTodo);
// Create Completed button
const completedButton = document.createElement("button");
completedButton.innerHTML = "<i class='fas fa-check'></i>";
completedButton.classList.add("check-btn");
todoDiv.appendChild(completedButton);
// Create Trash button
const trashButton = document.createElement("button");
trashButton.innerHTML = "<i class='fas fa-trash'></i>";
trashButton.classList.add("trash-btn");
todoDiv.appendChild(trashButton);
// Append all
todoList.appendChild(todoDiv);
}
function addTodo(e) {
// Validate and prevent refresh
e.preventDefault();
if (!todoInput.value) return;
// Creating all components
createComponents(todoInput.value);
// Add todo to local storage
saveLocalTodos(todoInput.value);
// Clear and focus Input
todoInput.value = "";
}
function deleteCheck(e) {
const item = e.target;
const todo = item.parentElement;
// delete todo
if (item.classList[0] === "trash-btn") {
todo.classList.add("fall");
todo.addEventListener("animationend", function () {
removeLocalTodos(todo);
todo.remove();
});
}
// completed todo
if (item.classList[0] === "check-btn") todo.classList.toggle("completed");
}
function filterTodo(e) {
const value = e.target.value;
const todos = todoList.childNodes;
console.log(value);
todos.forEach(function (todo) {
switch (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;
default:
return;
}
});
}
function saveLocalTodos(todo) {
// Check
let todos;
// if it HAS already an item, get it
if (localStorage.getItem("todos") !== null) {
todos = JSON.parse(localStorage.getItem("todos"));
} else {
todos = [];
}
todos.push(todo);
localStorage.setItem("todos", JSON.stringify(todos));
}
function getTodos() {
let todos;
// if it HAS already an item, get it
if (localStorage.getItem("todos") !== null) {
todos = JSON.parse(localStorage.getItem("todos"));
} else {
todos = [];
}
todos.forEach(function (todo) {
createComponents(todo);
});
}
function removeLocalTodos(todo) {
let todos;
if (localStorage.getItem("todos") !== null) {
todos = JSON.parse(localStorage.getItem("todos"));
} else {
todos = [];
}
const todoIndex = todo.children[0].innerText;
todos.splice(todos.indexOf(todoIndex), 1);
localStorage.setItem("todos", JSON.stringify(todos));
}