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toLowerCase() 메서드는 문자열을 소문자로 변환해 반환합니다.구문
str.toLowerCase()반환값
호출 문자열을 소문자로 변환한 새로운 문자열
설명
toLowerCase() 메서드는 호출 문자열을 소문자로 변환해 반환합니다. toLowerCase() 는 원래의 str에 영향을 주지 않습니다.
예제
toLowerCase()
console.log('ALPHABET'.toLowerCase()); // 'alphabet'
명세
| 표준 | 상태 | 비고 |
|---|---|---|
| ECMAScript 1st Edition (ECMA-262) | Standard | Initial definition. Implemented in JavaScript 1.0. |
| ECMAScript 5.1 (ECMA-262) The definition of 'String.prototype.toLowerCase' in that specification. |
Standard | |
| ECMAScript 2015 (6th Edition, ECMA-262) The definition of 'String.prototype.toLowerCase' in that specification. |
Standard | |
| ECMAScript Latest Draft (ECMA-262) The definition of 'String.prototype.toLowerCase' in that specification. |
Draft |
브라우저 호환성
The compatibility table in this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Update compatibility data on GitHub
| Desktop | Mobile | Server | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
toLowerCase | Chrome Full support Yes | Edge Full support 12 | Firefox Full support 1 | IE Full support Yes | Opera Full support Yes | Safari Full support Yes | WebView Android Full support Yes | Chrome Android Full support Yes | Edge Mobile Full support Yes | Firefox Android Full support 4 | Opera Android Full support Yes | Safari iOS Full support Yes | Samsung Internet Android Full support Yes | nodejs Full support Yes |
Legend
- Full support
- Full support