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eazyseon
for in / for of ๋ณธ๋ฌธ
๋ฐ์ํ
for in
๊ฐ์ฒด ์ํํ๋ฉฐ Object์ ์๋ key์ ์ฐจ๋ก๋ก ์ ๊ทผํ๋๋ฐ ์ฌ์ฉ๋๋ ๋ฐ๋ณต๋ฌธ
const ์ฌ๋ฆ = {
์์ด์คํฌ๋ฆผ:"๋ฉ๋ก๋",
๊ณผ์ผ:"์๋ฐ",
์ปคํผ:"์์",
};
for (let key in ์ฌ๋ฆ) {
console.log(key) ;
}//์์ด์คํฌ๋ฆผ,๊ณผ์ผ,์ปคํผ ์ถ๋ ฅ
//์ด๋ ๊ฒ ๊ฐ์ฒด์ key๊ฐ์ ๊ฐ์ ธ์ฌ ์ ์๋ค. ๊ทธ๋์
for (let key in ์ฌ๋ฆ) {
const value = ์ฌ๋ฆ[key];
console.log(value);
}//๋ฉ๋ก๋,์๋ฐ,์์ ์ถ๋ ฅ
for of
๋ฐฐ์ด ์ํํ๋ฉฐ ๋ฐฐ์ด์ ์์๋ฅผ ํ๋์ฉ ๋ฐํ
const ์ฌ๋ฆ = ["์์ด์คํฌ๋ฆผ", "์ปคํผ", "๊ณผ์ผ"];
for (let item of ์ฌ๋ฆ) {
console.log(item);
}//์์ด์คํฌ๋ฆผ,์ปคํผ,๊ณผ์ผ ์ถ๋ ฅ
๋ฐ์ํ
'๐JavaScript' ์นดํ ๊ณ ๋ฆฌ์ ๋ค๋ฅธ ๊ธ
Math (0) | 2023.03.11 |
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์๋ฐ์คํฌ๋ฆฝํธ ๋ฌธ์์ด ์๋ฅด๊ธฐ (substr,substring,slice) (0) | 2023.02.27 |
lastIndexOf (0) | 2023.02.22 |
Set ์์ฑ์ (0) | 2023.02.20 |
์ด์ค์ผํญ์ฐ์ฐ์ (0) | 2023.02.16 |
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