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[JavaScript] sort ์ •๋ ฌ ๋ณธ๋ฌธ

๐ŸŽจ ํ”„๋ก ํŠธ์—”๋“œ/JavaScript

[JavaScript] sort ์ •๋ ฌ

rigood 2023. 5. 17. 09:56

Array.sort()

- ๋ฐฐ์—ด์„ ์ •๋ ฌํ•˜๋Š” ๋ฉ”์„œ๋“œ

- ์ •๋ ฌํ•œ ๋ฐฐ์—ด์„ ๋ฐ˜ํ™˜ (์›๋ณธ ๋ฐฐ์—ด ์ˆ˜์ •)

- ์ •๋ ฌ ๋กœ์ง์„ ๋‹ด์€ ํ•จ์ˆ˜๋ฅผ ์ธ์ž๋กœ ๋ฐ›์Œ

- ์ธ์ž๊ฐ€ ์—†๋Š” ๊ฒฝ์šฐ, ๋ฌธ์ž์—ด ์œ ๋‹ˆ์ฝ”๋“œ์— ๋”ฐ๋ผ ์ •๋ ฌ (์ˆซ์ž๋„ ๋ฌธ์ž์—ด ์ทจ๊ธ‰ํ•˜์—ฌ ์ •๋ ฌ)

arr.sort((a,b) => {
	return a - b
})

a-b > 0 ์ด๋ฉด (a>b), b๋ฅผ ์•ž์œผ๋กœ ๋ณด๋ƒ„
a-b = 0 ์ด๋ฉด (a=b), ๊ทธ๋Œ€๋กœ
a-b < 0 ์ด๋ฉด (a<b), a๋ฅผ ์•ž์œผ๋กœ ๋ณด๋ƒ„

 

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