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[].join() ๋ฉ์๋ ๋ณธ๋ฌธ
join() ๋ฉ์๋๋ ๋ฐฐ์ด์ ๋ชจ๋ ์์๋ฅผ ์ฐ๊ฒฐํด ํ๋์ ๋ฌธ์์ด๋ก ๋ง๋ญ๋๋ค.
const elements = ['Fire', 'Air', 'Water'];
console.log(elements.join()); // ๋น ๋ฌธ์์ด์ด๋ฉด ์ผํ๋ก ๊ตฌ๋ถ
// expected output: "Fire,Air,Water"
console.log(elements.join(''));
// expected output: "FireAirWater"
console.log(elements.join('-'));
// expected output: "Fire-Air-Water"
'๐ง๐ปโ๐ป ๊ฐ๋ฐ๊ฐ๋ฐ > javascript' ์นดํ ๊ณ ๋ฆฌ์ ๋ค๋ฅธ ๊ธ
๊ณ ์ฐจํจ์ ๋ฉ์๋ ์ ๋ฆฌ(map, filter, reduce) (0) | 2021.06.03 |
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๊ณ ์ฐจํจ์(์ฝ๋ฐฑํจ์) ์ ๋ฆฌ (0) | 2021.06.03 |
str.split('')๊ณผ str.split(' ')์ ์ฐจ์ด (0) | 2021.06.03 |
immutable (๋ถ๋ณ์ฑ) ๋ฉ์๋ : slice() (0) | 2021.06.03 |
Array.forEach() (0) | 2021.06.02 |
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