preventDefault, lowercase만 입력 받는 예제

만타가올이 2021. 3. 16. 17:12

developer.mozilla.org/en-US/docs/Web/API/Event/preventDefault

Event.preventDefault() - Web APIs | MDN

Event.preventDefault() The Event interface's preventDefault() method tells the user agent that if the event does not get explicitly handled, its default action should not be taken as it normally would be. The event continues to propagate as usual, unless o

developer.mozilla.org