Name: 2.4 保存到數據庫--在JavaScript中使用數據和API工作 (2.4 Saving to a Database - Working with Data and APIs in JavaScript)
Uploaded: 2021-01-14T10:43:30.000Z
Duration: 11 min 18 s
Description: 【看影片學英語】數萬部 YouTube 影片，搭配英漢字典即點即查，輕鬆掌握單字發音與用法，長久累積看電影不必再看字幕。

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So a database is for persistence, your ability

So whether or not you quit the server, restart the server,

So a classic example of this is, you made a game

You're going to need somewhere to store that high score list.

That's a little bit tricky because we've got

But that's something that needs to be stored in a database.

And you can't do this with client-side code alone.

And local storage is a mechanism for your browser

But the issue with that is, if you're saving information here,

If the different clients connecting to your server

that needs to be saved at a database that's

You can use something called a Database-as-a-Service.

and how to have the Firebase service store data for you.

There's mLab, which is also a Database-as-a-Service.

meaning the data is stored in basically documents, like JSON

It's more complex and sophisticated than that,

that you can send data to, and it will save it for you.

Or you could still use Node, but not actually have the database

And you could actually use MongoDB itself with Node

Or you could use something called SQLite.

But if you're interested in learning more about SQL,

channel, which has a whole playlist about SQL itself.

freely available database system called NeDB.

It's all JavaScript based, and you can run it in Node.

This is not maybe going to be your end solution

But for basic database functionality and learning

All of the documentation for NeDB is on GitHub.

I'll be referring to it quite a bit throughout this video.

And there you can also donate to help support

Let's take a look at where I left the code off.

Now, I did make some modifications since I last

it sends the data to the server, we can see.

And then I get the success response back.

Every time it gets a request, it's listing, ah,

It's a global variable that just starts off empty

I want something to store every single time I submit a latitude

And I want to be able to look at that thing that I stored.

And an array is a perfectly fine way to start doing that.

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2.4 保存到數據庫--在JavaScript中使用數據和API工作 (2.4 Saving to a Database - Working with Data and APIs in JavaScript)

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