๐ง codingtest/์ ๊ทํํ์(regexp)
02. ๋ฌธ์ ํ๋ ์ฐพ๊ธฐ!
awesomeyelim
2022. 8. 27. 18:56
728x90
๋ชจ๋ ๋ฌธ์ ์ฐพ๊ธฐ
- ๋ง์นจํ(.) : ์๋ฌด ๋ฌธ์ ํ๋ ์ ์ผ์น
const str = "Hello, my name is Yelim. I really hope you guys have good day~!";
function test(e) {
return console.log(e.match(".lim")[0]);
}
test(str); // elim
- ์ฐ์ ๋ง์นจํ ๋๊ฐ (..) : ๋ถ์ด์๋ ๋ฌธ์ ๋๊ฐ ์ ์ผ์น
const str = "Hello, my name is Yelim. I really hope you guys have good day~!";
function test(e) {
return console.log(e.match("..lim")[0]);
}
test(str); // Yelim
- ์ด์ค์ผ์ดํ(\) ์ฌ์ฉํ ๋ง์นจํ(.) : ๋ง์นจํ(.) ์์ฒด๋ฅผ ์ฐพ์์ ์๋ค.
const str = "Hello, my name is Yelim. I really hope you guys have good day~!";
function test(e) {
return console.log(e.match("m\\.")[0]);
} // ์ญ์ฌ๋์(\) ์์ฒด๊ฐ ์ด์ค์ผ์ดํ ๋๋ฏ๋ก ์ธ์์ด ์๋๊ธฐ ๋๋ฌธ์ ๋ค๋ฅธ ๋ฌธ์๋ฅผ ์ด์ค์ผ์ดํ ํด์ค๋๋ ์ญ์ฌ๋์(\) ๋๋ฒ์ฌ์ฉ
test(str); // m.
const arr = [
"yelim1.jpg",
"nun2.jpg",
"dong1.xls",
"don2.xls",
"dong3.xls",
"don4.xls",
"sal.png",
"sal2.png",
];
function test(e) {
for (let i of e) {
i.match("don..") && console.log(i.match("don..")[0]);
}
}
test(arr);
// dong1
// don2.
// dong3
// don4.
์ญ์ฌ๋์(\)
๋ฉํ ๋ฌธ์๋ค(๋ฌธ์ ๊ทธ๋๋ก ์ฌ์ฉ๋์ง ์๊ณ ํน๋ณํ ์๋ฏธ๋ฅผ ์ง๋๋ ๋ฌธ์๋ฅผ ์นญํจ)
๋ถํธ | ๊ธฐ๋ฅ |
. | ์๋ฌด ๋ฌธ์ ํ๋ ์ ์ผ์น |
.. | ๋ถ์ด์๋ ๋ฌธ์ ๋๊ฐ ์ ์ผ์น |
\. | ์์ฒด๋ฅผ ์ฐพ์์ ์๋ค. |