๋ชฉ๋กJS ๊ฐ์ฒด ์ •๋ ฌ (1)

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[VanillaJS] ๊ฐ์ฒด ์ •๋ ฌ ์–ด๋–ป๊ฒŒ ํ•˜์ง€? (feat. ๋ฌธ์ž์—ด)

๋ฐฐ์—ด์„ ์ •๋ ฌํ•  ๋•Œ๋Š”, Array.sort() ํ•จ์ˆ˜๋ฅผ ํ†ตํ•ด์„œ ์ •๋ ฌ์„ ํ•  ์ˆ˜ ์žˆ๋‹ค. ๊ฐ์ฒด๋ฅผ ์ •๋ ฌํ•  ๋•Œ๋Š” ์–ด๋–ป๊ฒŒ ํ•ด์•ผํ• ๊นŒ? ๊ฐ์ฒด๋„ ๋งˆ์ฐฌ๊ฐ€์ง€๋กœ sort()๋ฅผ ์ด์šฉํ•˜๋Š”๋ฐ, ๋‚ด๋ถ€์— compareFunction์„ ์ •์˜ํ•ด์ฃผ์–ด์•ผ ํ•œ๋‹ค. ์˜ˆ๋ฅผ๋“ค์–ด, ageํ•„๋“œ๋ฅผ ๊ฐ€์ง„ ์•„๋ž˜ ๊ฐ์ฒด ๋ฐฐ์—ด์€ ๋‹ค์Œ๊ณผ ๊ฐ™์ด ์ •๋ ฌํ•  ์ˆ˜ ์žˆ๋‹ค. let objs = [ {age: 13}, {age: 43}, {age: 9}, {age: 40} ]; objs.sort(function(a,b) { // ์˜ค๋ฆ„์ฐจ์ˆœ return a.age - b.age; }); objs.sort(function(a,b) { // ๋‚ด๋ฆผ์ฐจ์ˆœ return b.age - a.age; }); C++๊ณผ ๊ฐ™์€ ๋‹ค๋ฅธ ์–ธ์–ด์—์„œ๋Š”, compareFunction์„ ์ •์˜ํ•  ๋•Œ, booleanํ˜•์‹์œผ๋กœ ..
Web 2021. 8. 23. 21:46
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