How To Implement localStorage or Firebase Firestore into your JS project

I am a great reader, I love books and I try to read as much as I can, no matter the topic, whatever, fantasy, comedy, sci-fi, educational...Books take me to another world, they make me feel, make me think, make me relax and make me disconnect from the day by day schedule. I cannot live without them.

I am a great reader, I love books and I try to read as much as I can, no matter the topic, whatever, fantasy, comedy, sci-fi, educational...Books take me to another world, they make me feel, make me think, make me relax and make me disconnect from the day by day schedule. I cannot live without them. 

This is why my first approach to Javascript was to create a Library to store my books, with some information about them ( title, author, number of pages…) and if I read it or not. I know, it was a small, simple project, but what do you expect? It was my very first one, so I only wanted to practice as much as I could and make it work.

So, I created my HTML file, my script.js file and worked a bit on my CSS to build something nice to my eyes. After working on it for a while, I got my site looking good and my library working fine. I had a table with my books, with all the information related and a “NEW BOOK” button that brought up a form allowing me to input the details for a new book to add to the library.

All the books were an instance of the constructor Books, with a prototype to toggle the read status and all of them stored in an array. Something like this:

function Book(title, author, pages, read) {
    this.title = title;
    this.author = author;
    this.pages = pages;
    this.read = read;
}

Book.prototype.info = function () {
    return this.title + " by " + this.author + ", " + this.pages + " pages, " + this.read;
}
Book.prototype.toggleReadStatus = function () {
    this.read = this.read == 'Read' ? 'Not read' : 'Read';
}

let myLibrary = [];

Perfect! I was so happy so I started to add read books and books that I planned to read, I spent some time with it. Actually, it was my first JS creation and wanted to play around a bit. After all the work I went to have lunch and went came back to my computer and opened my page again...surprise!

No one book there, all of them gone! My array was empty, and all my previous work adding content as well. 

Bad luck or just a beginner mistake, I thought all the data will remain in my array and would keep it there forever, but it is not working that way. After some research on the web, I understood that I needed to store the data somewhere or it would vanish every time I refreshed the page.

javascript localstorage firebase software-development learning-to-code coding storage cloud-storage

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