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web-three/week-3/firestore.html

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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>My Shopping List App</title>
<style>
#item {
border: 1px solid #ccc;
font-size: 16px;
}
ul, li {
margin: 0;
padding: 0;
list-style-type: none;
}
li{
padding: .5em 0;
}
input:checked + span {
text-decoration: line-through;
}
</style>
</head>
<body>
<h1>My Shopping List App</h1>
<input type="text" name="item" id="item"> <button id="add">Add</button>
<hr>
<ul id="shopping-list">
</ul>
<script>
const addBtn = document.getElementById('add');
const inputBox = document.getElementById('item');
const list = document.getElementById('shopping-list');
const keyName = 'shopping-items';
let allItems = JSON.parse( localStorage.getItem(keyName) );
addBtn.addEventListener('click', addItem);
function addItem(arg){
if(typeof arg === 'string'){
item = arg;
}else{
item = inputBox.value;
}
// Create list item
let li = document.createElement('li');
li.className = "list-item";
// Create an input element
let input = document.createElement('input');
input.type = "checkbox";
input.name = "items";
// Create a span element
let span = document.createElement('span');
span.innerText = item;
// Create an anchor
let a = document.createElement('a');
a.innerText = "x";
a.href = "";
a.addEventListener('click', function (event) {
this.parentNode.remove();
// Save All Items
let allItems = getAllItems();
localStorage.setItem(keyName, JSON.stringify(allItems));
event.preventDefault();
});
// Append each element to our list item
li.appendChild(input);
li.appendChild(span);
li.appendChild(a);
// Append our list item to the <ul>
list.appendChild(li);
inputBox.value = "";
inputBox.focus();
// Save All Items
let allItems = getAllItems();
localStorage.setItem(keyName, JSON.stringify(allItems));
}
allItems.forEach(element => {
addItem(element);
});
function getAllItems(){
let items = document.querySelectorAll("#shopping-list span");
let itemsArray = [];
items.forEach(item => {
itemsArray.push(item.innerText);
})
return itemsArray;
}
</script>
</body>
</html>