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JSX
Front-End
2023.07.21.

JSXλž€?

JSXλŠ” μžλ°”μŠ€ν¬λ¦½νŠΈ XML의 μ•½μ–΄λ‘œ, UI μ»΄ν¬λ„ŒνŠΈλ₯Ό μœ„ν•œ μžλ°”μŠ€ν¬λ¦½νŠΈ ν™•μž₯ λ¬Έλ²•μž…λ‹ˆλ‹€. Reactμ—μ„œ μ‚¬μš©λ˜λ©°, JSX둜 μž‘μ„±λœ μ½”λ“œλŠ” 바벨(Babel)κ³Ό 같은 도ꡬλ₯Ό μ‚¬μš©ν•˜μ—¬ μžλ°”μŠ€ν¬λ¦½νŠΈ μ½”λ“œλ‘œ λ³€ν™˜λ©λ‹ˆλ‹€.

μ˜ˆμ‹œ

λ‹€μŒμ€ JSX둜 μž‘μ„±λœ μ˜ˆμ‹œμž…λ‹ˆλ‹€.

const element = <h1>Hello, world!</h1>;

μœ„ μ½”λ“œλŠ” λ‹€μŒκ³Ό 같은 μžλ°”μŠ€ν¬λ¦½νŠΈ μ½”λ“œλ‘œ λ³€ν™˜λ©λ‹ˆλ‹€.

const element = React.createElement("h1", null, "Hello, world!");

JSXλŠ” HTMLκ³Ό μœ μ‚¬ν•œ 문법을 μ‚¬μš©ν•˜μ—¬ UI μ»΄ν¬λ„ŒνŠΈλ₯Ό μž‘μ„±ν•  수 μžˆμŠ΅λ‹ˆλ‹€.

function Greeting(props) {
  return <h1>Hello, {props.name}!</h1>;
}

const element = <Greeting name="World" />;

μœ„ μ½”λ“œλŠ” λ‹€μŒκ³Ό 같은 HTML μ½”λ“œλ‘œ λ³€ν™˜λ©λ‹ˆλ‹€.

<h1>Hello, World!</h1>

JSXλŠ” Reactμ—μ„œ μ»΄ν¬λ„ŒνŠΈλ₯Ό μž‘μ„±ν•˜λŠ” 데 맀우 μœ μš©ν•œ λ¬Έλ²•μž…λ‹ˆλ‹€.

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