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자바스크립트 문자열 바꾸기()

마이크로소프트 교체:

let text = "Visit Microsoft!";
let result = text.replace("Microsoft", "W3Schools");

글로벌 교체:

let text = "Mr Blue has a blue house and a blue car";
let result = text.replace(/blue/g, "red");

아래에 더 많은 예가 있습니다.


정의 및 사용

replace()메서드는 문자열에서 값이나 정규식을 검색합니다.

replace()메서드는 값이 대체된 새 문자열을 반환합니다.

replace()메서드는 원래 문자열을 변경하지 않습니다.


메모

값을 바꾸면 첫 번째 인스턴스만 바뀝니다. 모든 인스턴스를 바꾸려면 g 수정자가 설정된 정규식을 사용합니다.

정규 표현식에 대해 자세히 알아보기:


통사론

string.replace(searchValue, newValue)

매개변수

Parameter Description
searchValue Required.
The value, or regular expression, to search for.
newValue Required.
The new value (to replace with).

반환 값

유형 설명
문자열지정된 값이 대체된 새 문자열입니다.


더 많은 예

대소문자를 구분하지 않는 전역 대체:

let text = "Mr Blue has a blue house and a blue car";
let result = text.replace(/blue/gi, "red");

대체 텍스트를 반환하는 함수:

let text = "Mr Blue has a blue house and a blue car";
let result = text.replace(/blue|house|car/gi, function (x) {
  return x.toUpperCase();
});

브라우저 지원

replace()ECMAScript1(ES1) 기능입니다.

ES1(JavaScript 1997)은 모든 브라우저에서 완벽하게 지원됩니다.

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