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Advanced todo list #3

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Advanced todo list #3

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4bfa62f
Completed Advanced Todo List
ivan50303 Jan 4, 2023
9d96bea
Completed Advanced Todo List
ivan50303 Jan 4, 2023
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1 change: 1 addition & 0 deletions 65-advanced-todo-list/before/index.html
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Original file line number Diff line number Diff line change
Expand Up @@ -3,6 +3,7 @@
<head>
<title>Advanced Todo List</title>
<link rel="stylesheet" href="styles.css">
<script src="script.js" defer></script>
</head>
<body>
<ul id="list">
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76 changes: 76 additions & 0 deletions 65-advanced-todo-list/before/script.js
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Original file line number Diff line number Diff line change
@@ -0,0 +1,76 @@
const form = document.querySelector('#new-todo-form')
const todoInput = document.querySelector('#todo-input')
const list = document.querySelector('#list')
const template = document.querySelector('#list-item-template')
const LOCAL_STORAGE_PREFIX = 'ADVANCED_TODO_LIST'
const TODOS_STORAGE_KEY = `${LOCAL_STORAGE_PREFIX}-todos`
let todos = loadTodos()
todos.forEach((todo) => renderTodo(todo))

list.addEventListener('change', (e) => {
if (!e.target.matches('[data-list-item-checkbox]')) return

// Get the todo that is clicked on
const parent = e.target.closest('.list-item')
const todoId = parent.dataset.todoId
const todo = todos.find((t) => t.id === todoId)
// Toggle the complete property to be equal to the checkbox value
todo.complete = e.target.checked
// Save our updated todo
saveTodos()
})

list.addEventListener('click', (e) => {
if (!e.target.matches('[data-button-delete]')) return

const parent = e.target.closest('.list-item')
const todoId = parent.dataset.todoId

//Remove todo from screen
parent.remove()
//Remove todo from list
todos = todos.filter((todo) => todo.id !== todoId)
//Save the new todos
saveTodos()
})

form.addEventListener('submit', (e) => {
//Prevent refresh of page when form is submitted
e.preventDefault()

//gets value inside of input
const todoName = todoInput.value
if (todoName === '') return
const newTodo = {
name: todoName,
complete: false,
id: new Date().valueOf().toString(),
}
todos.push(newTodo)
renderTodo(newTodo)
saveTodos()
todoInput.value = ''
})

function renderTodo(todo) {
//Get all content inside template, clone it, and store in variable. 'true' ensures all code is cloned.
const templateClone = template.content.cloneNode(true)
const listItem = templateClone.querySelector('.list-item')
listItem.dataset.todoId = todo.id
const textElement = templateClone.querySelector('[data-list-item-text]')
textElement.innerText = todo.name
const checkbox = templateClone.querySelector('[data-list-item-checkbox]')
checkbox.checked = todo.complete
list.appendChild(templateClone)
}

function saveTodos() {
localStorage.setItem(TODOS_STORAGE_KEY, JSON.stringify(todos))
}

function loadTodos() {
const todosString = localStorage.getItem(TODOS_STORAGE_KEY)
return JSON.parse(todosString) || []
}

//test