๐ŸŸฉ Frontend-HTML & CSS & +JS/๐Ÿ”ฐ React

React (const๋กœ ์Šคํƒ€์ผ ์ง€์ •) ๊ฐ์ฒดํ˜•์œผ๋กœ ํ˜„์žฌ ์ปดํฌ๋„ŒํŠธ ์•ˆ ์Šคํƒ€์ผ์ ์šฉ

ramen2 2024. 11. 27. 15:52
๋ฐ˜์‘ํ˜•

App.js

import React from "react";
import Wrapper from "./component/Wrapper";
import Hello from "./component/Hello";
import "./App.css";

function App() {
  /* ๊ฐ์ฒดํ˜•์œผ๋กœ ํ˜„์žฌ ์ปดํฌ๋„ŒํŠธ์—์„œ ์Šคํƒ€์ผ์„ ์„ ์–ธํ•˜๋Š” ๋ฐฉ๋ฒ• */
  const style = {
    backgroundColor: "skyblue",
    color: "white",
    fontSize: 40,
    padding: "1rem",
  };

  const name = "hello2";
  return (
    <>
      {/* css๋ฅผ ์ ์šฉํ•˜๋Š” ๋ฐฉ๋ฒ• : className ์†์„ฑ์— ์ ์šฉ */}
      {/* 
       ์ปดํฌ๋„ŒํŠธ์•ˆ์— ํƒœ๊ทธ๋ฅผ ์ถ”๊ฐ€ ํ•  ์ˆ˜ ์—†๋‹ค ๊ทธ๋ž˜๋„ ํ• ์ˆ˜ ์žˆ๋‹ค
       ๋ฐฉ๋ฒ•์€ ๋งค๊ฐœ๋ณ€์ˆ˜ ์ปดํฌ๋„ŒํŠธ์•ˆ์— { children } ๊ฐ์ฒด๋ฅผ ๋งค๊ฐœ๋ณ€์ˆ˜ ์ „๋‹ฌํ•˜๊ณ 
       return ์•ˆ์ชฝ์— { children } ๋ฅผ ์„ ์–ธํ•˜๋ฉด 
       ์ปดํฌ๋„ŒํŠธ ์•ˆ์— ์ด๋™ ์•ˆํ•ด๋„ ํƒœ๊ทธ๋ฅผ ์ž…๋ ฅํ•  ์ˆ˜ ์žˆ๋‹ค
      */}
      <Wrapper />
      <Wrapper>
        <div className="deeppink">hello1</div>
        <div style={style}>{name}</div>
        <Hello name="apple" color="gold" isSpecial={true} />
        <Hello name="banana" color="yellowgreen" />
        <Hello/>
      </Wrapper>
    </>
  );
}

export default App;

 

์ด๋Ÿฐ์‹์œผ๋กœ style์ด๋ผ๋Š” ์Šคํƒ€์ผ์„ const ํ•จ์ˆ˜๋กœ ๋งŒ๋“ค์–ด์„œ

<div style={style}>์œผ๋กœ ์ ์šฉํ•จ

 

const๋กœ ์ง€์ •ํ•œ style์ƒ‰์ƒ๊ณผ ๊ธ€์ž 'hello2'๊ฐ€ ๋“ค์–ด๊ฐ„ ๋ชจ์Šต

๋ฐ˜์‘ํ˜•