repeat()

repeat() 란?

repeat()는 문자열을 복사하여, 복사한 새로운 문자열을 반환해주는 메서드입니다.

const str1 = "cat"
const currentStr1 = str1.concat("0"); //'_' //공백
const currentStr2 = str1.concat("1"); //cat
const currentStr3 = str1.concat("3"); //catcatcat

"문자열".repeat(숫자)

 

    const str1 = "javascript";
    const currentStr1 = str1.repeat("0"); //''
    const currentStr2 = str1.repeat("1"); //javascript
    const currentStr3 = str1.repeat("2"); //javascriptjavascript