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book.js
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//Book class
class Book
{
constructor(title,author,resource,date)
{
this.title=title;
this.author=author;
this.resource=resource;
this.date=date;
}
}
function GoToResources()
{
console.log("Just clicked");
location.href="./resources.html";
}
function GoBack()
{
location.href="./book.html";
}
//Local Storage
class bookStore
{
static getBooks()
{
let books;
if(localStorage.getItem('books')===null)
{
books=[];
}
else{
books=JSON.parse(localStorage.getItem('books'));
}
return books;
}
static addBook(book)
{
const books=bookStore.getBooks();
books.push(book);
console.log(books);
localStorage.setItem('books',JSON.stringify(books));
}
}
class UI
{
static displayBooks()
{
const books=bookStore.getBooks();
books.forEach(book=>UI.addBooktoList(book));
}
static addBooktoList(book)
{ const list=document.querySelector('#resource-list');
const totalRowCount = list.rows.length;
const i=totalRowCount;
const row=document.createElement('tr');
row.setAttribute ("id",i);
row.innerHTML=
`
<td>${book.title}</td>
<td>${book.author}</td>
<td>${book.resource}</td>
<td>${book.date}</td>
<td><button style="padding: 0.4em 0.8em;
border: 2px solid blue;
border-radius: 5px;
background: #5fa8d3;
color: white;
font-weight: 3px;
font-size: 1em;
font-family: 'Noto Sans', sans-serif;
margin-left: 0.6em;
cursor: pointer;
outline: none;" onclick="removeRow(${i})">Remove</button></td>
`;
list.appendChild(row);
}
// function to delete a row.
static clearform()
{
document.querySelector('#title').value='';
document.querySelector('#author').value='';
document.querySelector('#resource').value='';
document.querySelector('#date').value='';
}
static alertMsg(message,name){
const div=document.createElement('div');
div.className=`alert alert-${name}`;
div.appendChild(document.createTextNode(message));
const container=document.querySelector('.container');
const form=document.querySelector('#book-form');
container.insertBefore(div,form);
setTimeout(() => document.querySelector('.alert').remove(), 2000);
}
}
function removeRow(oButton) {
var empTab = document.getElementById('resource-list');
var emptabb =document.getElementById(oButton);
var items=JSON.parse(localStorage.getItem('books'));
if (items.length==1){
emptabb.innerHTML=" ";
localStorage.clear();
}
for (var i =0; i< items.length; i++) {
var item = items[i];
if (i == oButton) {
emptabb.innerHTML=" ";
items.splice(i);
}
}
localStorage.setItem('books',JSON.stringify(items));
}
document.addEventListener('DOMContentLoaded',UI.displayBooks());
document.querySelector('#book-form').addEventListener('submit', (e)=>
{
e.preventDefault();
const title=document.querySelector('#title').value;
const author=document.querySelector('#author').value;
const isbn=document.querySelector('#resource').value;
const date=document.querySelector('#date').value;
if(title==='' || author==='' || resource===''||date===''){
UI.alertMsg('Please fill all the fields','danger');
}
else{
const book=new Book(title,author,isbn,date);
bookStore.addBook(book);
UI.addBooktoList(book);
UI.alertMsg('Book added','success');
UI.clearform();
}
});
document.querySelector()
// for clearing the list
function update() {
if (localStorage.getItem('books') === null) {
itemJsonArray = [];
console.log("error");
} else {
itemJsonArrayStr = localStorage.getItem('books');
itemJsonArray = JSON.parse(itemJsonArrayStr);
}
console.log(itemJsonArray);
let tableBody = document.getElementById('resource-list');
let str = "";
itemJsonArray.forEach((element, index) => {
str += `
<tr>
<td>${element[0]}</td>
<td>${element[1]}</td>
<td><button class="btn btn-primary btn-sm" onclick="deleted(${index})">Delete</button></td>
</tr>`;
});
tableBody.innerHTML = str;
}