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๐Ÿšฉ: ํ•จ์ˆ˜ void์™€ never ๊ด€๋ จ ์ฃผ์„ ์ถ”๊ฐ€
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โ€Žsrc/index.tsโ€Ž

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//ํ•จ์ˆ˜ void, never
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//void: void๋Š” ๋ฐ˜ํ™˜๋˜๋Š” ๊ฐ’์ด ์—†์„ ๋•Œ์ด๋‹ค.
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//void: void๋Š” ๋ฐ˜ํ™˜๋˜๋Š” ๊ฐ’์ด ์—†์„ ๋•Œ์ด๋‹ค. ์ฆ‰, ํ•จ์ˆ˜๊ฐ€ ์•„๋ฌด๋Ÿฐ ๊ฐ’์„ ๋ฐ˜ํ™˜ํ•˜์ง€ ์•Š์Œ์„ ๋‚˜ํƒ€๋‚ธ๋‹ค.
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function sayHello(): void {
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console.log('hello');
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}
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//never : never๋Š” ํ•ญ์ƒ error๋ฅผ ๋ฐ˜ํ™˜ํ•˜๊ฑฐ๋‚˜ ์˜์›ํžˆ ๋๋‚˜์ง€ ์•Š๋Š” ๋ฌดํ•œloop์ผ ๋•Œ ์‚ฌ์šฉํ•œ๋‹ค.
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//never : never๋Š” ํ•ญ์ƒ error๋ฅผ ๋ฐ˜ํ™˜ํ•˜๊ฑฐ๋‚˜ ์˜์›ํžˆ ๋๋‚˜์ง€ ์•Š๋Š” ๋ฌดํ•œloop์ผ ๋•Œ ์‚ฌ์šฉํ•œ๋‹ค. ์ฆ‰, ํ•จ์ˆ˜๊ฐ€ ์ ˆ๋Œ€์ ์œผ๋กœ ๋ฐ˜ํ™˜ํ•˜์ง€ ์•Š๋Š” ๊ฒฝ์šฐ์— ์‚ฌ์šฉ๋œ๋‹ค.
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function showError(): never {
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throw new Error();
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}

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