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app.js
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app.js
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// Define our UI Vars (5)
const form = document.querySelector('#task-form');
const taskInput = document.querySelector('#task');
const filter = document.querySelector('#filter');
const taskList = document.querySelector('.collection');
const clearBtn = document.querySelector('.clear-tasks');
// Load all event listeners - call the function
loadAllEventListeners();
// declare Load all event listeners function
function loadAllEventListeners(){
// DOM Load event
document.addEventListener('DOMContentLoaded', getTasks)
// Add task event
form.addEventListener('submit', addTask);
// Delete task
taskList.addEventListener('click', removeTask)
// Clear all tasks
clearBtn.addEventListener('click', clearTasks)
// Filter through tasks
filter.addEventListener('keyup', filterTasks)
}
// Get tasks from LS
function getTasks(){
let tasks;
if (localStorage.getItem('tasks') === null){
tasks = [];
} else {
tasks = JSON.parse(localStorage.getItem('tasks'));
}
tasks.forEach(function(task){
// Create li element
const li = document.createElement('li');
// Add class - "collection-item"
li.className = "collection-item";
// Create text node and append to li
li.appendChild(document.createTextNode(task));
// Create new link element
const link = document.createElement('a');
// Add class delete-item secondary-content
link.className = 'delete-item secondary-content';
// Add icon
link.innerHTML = '<i class= "fa fa-remove"></i>';
// Append link to li
li.appendChild(link);
// Append li to UL
taskList.appendChild(li);
console.log(task)
})
}
// Add task
function addTask(e){
// Add alert
if (taskInput.value === ''){
alert('Please insert a task')
} else {
// Create li element
const li = document.createElement('li');
// Add class - "collection-item"
li.className = "collection-item";
// Create text node and append to li
li.appendChild(document.createTextNode(taskInput.value));
// Create new link element
const link = document.createElement('a');
// Add class delete-item secondary-content
link.className = 'delete-item secondary-content';
// Add icon
link.innerHTML = '<i class= "fa fa-remove"></i>';
// Append link to li
li.appendChild(link);
// Append li to UL
taskList.appendChild(li);
// Store to LS
storeTasksInLocalStorage(taskInput.value);
// Clear input
taskInput.value = '';
//Prevent Default
}
e.preventDefault();
};
// Store task in LS
function storeTasksInLocalStorage(task){
// Declare tasks array
let tasks;
if (localStorage.getItem('tasks') === null){
tasks = [];
} else {
tasks = JSON.parse(localStorage.getItem('tasks'));
}
tasks.push(task);
localStorage.setItem('tasks', JSON.stringify(tasks));
}
// Remove Task
function removeTask(e){
// add confirm
if(e.target.parentElement.classList.contains('delete-item')){
if(confirm('Are you sure?')){
e.target.parentElement.parentElement.remove();
// Call remove from LS and pass the
removeTaskFromLongTermStorage(e.target.parentElement.parentElement);
}
}
}
// Remove from LS
function removeTaskFromLongTermStorage(listItem){
// declare array and check if theres anything in LS
if (localStorage.getItem('tasks') === null){
tasks = [];
} else {
tasks = JSON.parse(localStorage.getItem('tasks'));
}
tasks.forEach(function(task, index){
if(listItem.textContent === task){
tasks.splice(index,1);
console.log(index)
}
})
// Reset local storage
localStorage.setItem('tasks', JSON.stringify(tasks));
}
// Clear tasks
function clearTasks(){
taskList.innerHTML = ''
// Call clear from lS function
clearLocalStorage();
}
// Clear from LS
function clearLocalStorage(){
localStorage.clear();
}
// filter through tasks
function filterTasks(e){
const text = e.target.value.toLowerCase();
document.querySelectorAll('.collection-item').forEach(function(task){
const item = task.textContent.toLowerCase();
if(item.indexOf(text) != -1){
task.style.display = 'block';
} else {
task.style.display = 'none';
}
})
}