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Merge pull request #26 from sanginchun/docs
docs: ์ฟผ๋ฆฌ ์˜ต์…˜ ์„ค๋ช… ์ถ”๊ฐ€ ๋ฐ ์˜คํƒ€ ์ˆ˜์ •
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โ€ŽREADME.mdโ€Ž

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12. [์‹คํŒจํ•œ ์ฟผ๋ฆฌ์— ๋Œ€ํ•ด ์žฌ์š”์ฒญํ•˜๋Š” retry](#retry)
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13. [onSuccess, onError, onSettled](#onsuccess-onerror-onsettled) - ๐Ÿ’ก **v5 @Deprecated**
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14. [select๋ฅผ ์ด์šฉํ•œ ๋ฐ์ดํ„ฐ ๋ณ€ํ™˜](#select)
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15. [์ฟผ๋ฆฌ๊ฐ€ pending ์ƒํƒœ์ธ ๋™์•ˆ ๋ณด์—ฌ ์ค„ ์ˆ˜ ์žˆ placeholderData](#placeholderdata)
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15. [์ฟผ๋ฆฌ๊ฐ€ pending ์ƒํƒœ์ธ ๋™์•ˆ ๋ณด์—ฌ ์ค„ ์ˆ˜ ์žˆ๋Š” placeholderData](#placeholderdata)
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16. [Paginated ๊ตฌํ˜„์— ์œ ์šฉํ•œ keepPreviousData](#keepPreviousData) - ๐Ÿ’ก **v5 @Deprecated**
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17. [์ฟผ๋ฆฌ๋ฅผ ๋ณ‘๋ ฌ(Parallel) ์š”์ฒญํ•  ์ˆ˜ ์žˆ๋Š” useQueries](#parallel)
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18. [์ข…์† ์ฟผ๋ฆฌ(Dependent Queries)](#dependent-queries)
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### notifyOnChangeProps
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```tsx
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import { useQuery } from "@tanstack/react-query";
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const { data, dataUpdatedAt } = useQuery({
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queryKey: ["super-heroes"],
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queryFn: getAllSuperHero,
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notifyOnChangeProps: ["data"], // data ๊ฐ’ ๋ณ€๊ฒฝ์‹œ์—๋งŒ ๋ฆฌ๋žœ๋”๋ง์ด ๋ฐœ์ƒํ•œ๋‹ค
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});
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```
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- notifyOnChangeProps: `string[] | "all" | (() => string[] | "all")`
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- ์ฟผ๋ฆฌ์˜ ํŠน์ • ํ”„๋กœํผํ‹ฐ๋“ค์ด ๋ณ€๊ฒฝ๋˜์—ˆ์„ ๋•Œ๋งŒ ๋ฆฌ๋žœ๋”๋ง์ด ๋ฐœ์ƒํ•˜๋„๋ก ์„ค์ •ํ•  ์ˆ˜ ์žˆ๋‹ค.
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- ๋ณ„๋„๋กœ ์„ค์ •ํ•˜์ง€ ์•Š์œผ๋ฉด, **์ปดํฌ๋„ŒํŠธ์—์„œ ์ ‘๊ทผํ•œ ๊ฐ’์ด ๋ณ€๊ฒฝ๋˜์—ˆ์„ ๋•Œ** ๋ฆฌ๋žœ๋”๋ง์ด ๋ฐœ์ƒํ•œ๋‹ค (๊ธฐ๋ณธ ๋™์ž‘). ์ฆ‰ ์œ„ ์˜ˆ์‹œ์—์„œ `notifyOnChangeProps`์— ์„ค์ •๊ฐ’์„ ์ฃผ์ง€ ์•Š์•˜๋‹ค๋ฉด, `data`, `dataUpdatedAt` ์ค‘ ์–ด๋А ํ•˜๋‚˜๊ฐ€ ๋ณ€๊ฒฝ๋˜๋ฉด ๋ฆฌ๋žœ๋”๋ง์ด ๋ฐœ์ƒํ•œ๋‹ค.
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- `"all"`๋กœ ์„ค์ •ํ•  ๊ฒฝ์šฐ ์ฟผ๋ฆฌ์˜ ์–ด๋–ค ํ”„๋กœํผํ‹ฐ๊ฐ€ ๋ณ€๊ฒฝ๋˜๋“  ์ปดํฌ๋„ŒํŠธ๊ฐ€ ๋ฆฌ๋žœ๋”๋ง๋œ๋‹ค.
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- ์ฐธ๊ณ : ๊ธฐ๋ณธ ๋™์ž‘์€ [Object.defineProperty()](https://github.com/TanStack/query/pull/1578/files#diff-93f379800fc8abf895eba249b2e2371eda98740aa40fc9f284a8088d190f46c3R506-R514)๋ฅผ ํ™œ์šฉํ•œ๋‹ค.
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<br />
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## Parallel
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[๋ชฉ์ฐจ ์ด๋™](#์ฃผ์š”-์ปจ์…‰-๋ฐ-๊ฐ€์ด๋“œ-๋ชฉ์ฐจ)

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