JavaScript replace() / replaceAll()

replace() / replaceAll()

replace() 메서드는 문자열을 부분 문자열로 구분하고 배열로 반환합니다.

"문자열".replace("찾을 문자열", "변경할 문자열")
"문자열".replace(정규식)
"문자열".replace(정규식, "변경할 문자열")

const str1 = "javascript reference";
const cirrentStr1 = str1.replace("javascript", "자바스크립트");     //자바스크립트 reference
const cirrentStr2 = str1.replace("j", "J");                     //Javascript reference
const cirrentStr3 = str1.replace("e", "E");                     //javascript rEference
const cirrentStr4 = str1.replaceAll("e", "E");                  //javascript rEfErEncE
const cirrentStr5 = str1.replace(/e/g, "E");                    //javascript rEfErEncE
const cirrentStr6 = str1.replace(/e/gi, "E");                   //javascript rEfErEncE

const str2 = "https://www.naver.com/img01.jpg";
const cirrentStr7 = str2.replace("img01.jpg", "img02.jpg");  

const str3 = "010-2000-1000";
const cirrentStr8 = str3.replace("-", "");              //0102000-1000
const cirrentStr9 = str3.replaceAll("-", "");           //01020001000
const cirrentStr10 = str3.replaceAll(/-/g, "");         //01020001000
const cirrentStr11 = str3.replaceAll(/-/g, " ");        //010 2000 1000
const cirrentStr12 = str3.replaceAll(/[1-9]/g, "*");    //0*0-*000-*000