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script.js
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198 lines (132 loc) · 4.91 KB
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// selectors
const todoInput = document.querySelector('.todo-input');
const todoButton = document.querySelector('.todo-button');
const todoList = document.querySelector('.todo-list');
const filterOption = document.querySelector('.filter-todo');
// functions
function addTodo (event) {
// prevent button for doing default action
event.preventDefault();
// creating todo div
const todoDiv = document.createElement('div');
todoDiv.classList.add('todo');
// creating todo li
const newTodo = document.createElement('li');
newTodo.classList.add('todo-li');
newTodo.innerText = todoInput.value;
todoDiv.append(newTodo);
// save it to localStorage
saveLocalTodos(todoInput.value);
// completed todo button
const completedButton = document.createElement('button');
completedButton.innerHTML = `<i class="fas fa-check"></i>`;
completedButton.classList.add('completed-button');
todoDiv.append(completedButton);
// delete todo button
const deleteButton = document.createElement('button');
deleteButton.innerHTML = `<i class="fas fa-trash"></i>`;
deleteButton.classList.add('delete-button');
todoDiv.append(deleteButton);
// append todoDiv to todoList
todoList.append(todoDiv);
// clear the input value
todoInput.value = '';
}
function deleteAndCompleted (event) {
const item = event.target;
const todo = item.parentElement;
if (item.classList[0] === 'delete-button') {
todo.classList.add('delete-todo-animation');
removeLocalTodos(todo);
todo.classList.remove('completed');
todo.addEventListener('transitionend', function() {
todo.classList.remove('delete-todo-animation');
todo.remove();
})
} else if (item.classList[0] === 'completed-button') {
item.parentElement.classList.add('completed');
}
}
function filterTodo (event) {
const todos = todoList.children;
for (let element of todos) {
switch(event.target.value) {
case 'all':
element.style.display = 'flex';
break;
case 'completed':
if(element.classList.contains('completed')) {
element.style.display = 'flex';
} else {
element.style.display = 'none';
}
break;
case 'uncompleted':
if(!element.classList.contains('completed')) {
element.style.display = 'flex';
} else {
element.style.display = 'none';
}
break;
default:
alert('uhh, something went wrong :(');
break;
}
}
}
function saveLocalTodos (todo) {
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) {
// creating todo div
const todoDiv = document.createElement('div');
todoDiv.classList.add('todo');
// creating todo li
const newTodo = document.createElement('li');
newTodo.classList.add('todo-li');
newTodo.innerText = todo;
todoDiv.append(newTodo);
// completed todo button
const completedButton = document.createElement('button');
completedButton.innerHTML = `<i class="fas fa-check"></i>`;
completedButton.classList.add('completed-button');
todoDiv.append(completedButton);
// delete todo button
const deleteButton = document.createElement('button');
deleteButton.innerHTML = `<i class="fas fa-trash"></i>`;
deleteButton.classList.add('delete-button');
todoDiv.append(deleteButton);
// append todoDiv to todoList
todoList.append(todoDiv);
}) ;
}
function removeLocalTodos (todo) {
let todos;
if (localStorage.getItem('todos') === null) {
todos = [];
} else {
todos = JSON.parse(localStorage.getItem('todos'));
}
todoIndex = todo.children[0].innerText;
todos.splice(todos.indexOf(todoIndex), 1);
localStorage.setItem('todos', JSON.stringify(todos));
}
// EventListener
document.addEventListener('DOMContentLoaded', getTodos);
todoButton.addEventListener('click', addTodo);
todoList.addEventListener('click', deleteAndCompleted);
filterOption.addEventListener('change', filterTodo);