a = [1, 2, 3, 4]ย ์ผ ๋•Œ, ๊ฐ ์—˜๋ฆฌ๋จผํŠธ๋ฅผ ์ œ๊ณฑํ•˜๋Š”๊ฑฐ ์š”์ฆ˜์—” for๋ฌธ ์—†์ด ํ•˜๋Š” ๋ฐฉ๋ฒ•์ด ๋งŽ์ž–์Œ?



ํŒŒ์ด์ฌ์—์„œ b = [ x * x for x in a]


์•„๋‹ˆ๋ฉด map(lambda x : x*x, a)


์ž๋ฐ”์Šคํฌ๋ฆฝํŠธ์—์„ ย a.map(x=>x*x)


์•„๋‹ˆ๋ฉด a.map(function(x) { return x*x; })



map, apply, reduce ๋“ฑ๋“ฑ ์ปฌ๋ ‰์…˜์„ ๋ฐ”๋กœ ์กฐ์งˆ ์ˆ˜ ์žˆ๋Š” ์นœ๊ตฌ๋“ค์ด ๋งŽ์•„์„œ ์“ฐ๋ฉด ํŽธํ•ด๋ณด์ด๋Š”๋ฐ ์ต์ˆ™ํ•˜์ง€ ์•Š์•„์„œ ๊ทธ๋Ÿฐ์ง€


๋‚ด๊ฐ€ ์“ด ์ฝ”๋“œ๋Š” ๊ทธ๋ž˜๋„ ์•Œ๊ฒ ๋Š”๋ฐ ๋‚จ์ด ์ €๊ฑธ ์จ๋‘๋ฉด ์ธ์ž๋กœ ๋“ค์–ด๊ฐ€๋Š” x๊ฐ€ ๋ญ˜์ง€, ๊ฒฐ๊ณผ๊ฐ€ ์–ด๋–ป๊ฒŒ ๋‚˜์˜ฌ์ง€ ๊ณ ๋ฏผํ•˜๊ฒŒ๋จ;


ํŠนํžˆ ์ž๋ฐ”์Šคํฌ๋ฆฝํŠธ์— sort() ์•ˆ์— ๋„ฃ๋Š” ํ•จ์ˆ˜๊ฐ€ ์žด ์• ๋งคํ•˜๋˜๋ฐ -_-;



๋‹ค๋“ค ์ €๊ฑฐ ๋งŽ์ด ์“ฐ๋Š” ํŽธ์ž„?





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์•Œ๊ณ ๋ฆฌ์ฆ˜์ด๋‚˜ ์ž๋ฃŒ๊ตฌ์กฐ ๊ฐ™์€๊ฑฐ ๊ฐœ๋…ธ์žผ์ด์—ˆ๋Š”๋ฐ ์žฌ๊ท€ํ•จ์ˆ˜ ๋ณด๊ณ  ๋‚œ ์ดํ›„๋ถ€ํ„ด ์žฌ๋ฐŒ๋Š”๋“ฏ


์ž๋ฐ”์Šคํฌ๋ฆฝํŠธ๋กœ ํฌ๋กฌ์—์„œ ์‰ฝ๊ฒŒ ํ™•์ธํ•  ์ˆ˜ ์žˆ๋Š” ๊ฒƒ๋„ ์ข‹๊ณ ;


์‚ฌ์‹ค ๊ฒœ ๊ณ ๋ฏผํ•˜๋‹ค ์—‰๋šฑํ•œ๊ฑฐ ํ•˜๋ฉด์„œ ์‹œ๊ฐ„๋ณด๋‚ด๋‹ˆ๊นŒ ์žฌ๋ฐŒ๋Š”๋“ฏ ใ…กใ…ก; ์•„... ๊ฒœ๋งŒ๋“ค์–ด์•ผ๋˜๋Š”๋ฐ ์–ด๋ ค์›Œ์„œ ์†์ด ์•ˆ๊ฐ...