[Modern React] section1 : Let's Dive in!

1. How to Get Help

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2. Join Our Community!

done

 

3. Course Resourse

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4. Let's Build an App!

어떻게 리액트를 빨리 배웠을까라는 질문을 많이 받습니다. 이 질문에 답할 수 있는 대답은 딱 한가지입니다. 

You have to write code and you have to work on projects

 

5.  Critical Questions

1. What's React All about?

리액트는 (1) HTML을 보여주거나 (2) 사용자가 무언가를 할 때, HTML이 변한다.  

 

6.  A Few More Critical Questions

2. How does a React app start up?

1. All of your project's JS files are 'bundled' together into a single file, then placed onto a server

2. User makes a request to the server and gets an HTML file + the bundle 

3. User's browser executes your code 

 

3-1. Find the div with id of 'root in the DOM

3-2. Tell React to take control of that element

3-3. Tell React to getJSX from the App component, turn it into HTML, and show it in the root.

3. What were the 'useState' functions?

'useState' is a function that works with React's "state" system.

State is like a variable in React.

State is used to store data that changes over time.

Whenever state changes, React automatically updates content on the screen.

4. How did the text get translated to another language?

using goole translate API

 

7.  Node Setup

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8.  Creating a React Project

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9.  What is Create React App?

index.js : First file that gets executed when our app runs

index.html : Skeleton(뼈대) for the React app

package.json : Lists dependencies our app needs

package-lock.json : Lists dependencies our app needs

node-modules : Contains dependencies our app needs 

 

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https://www.udemy.com/course/react-redux/