JavaScript에서 delete 속성을 사용하여 개체에서 속성을 제거합니다. 다음 코드를 실행하여 삭제 연산자로 작업하는 방법을 배울 수 있습니다. 여기서 책값을 삭제합니다 -
예시
<html> <head> <title>JavaScript Delete Operator</title> <script> function book(title, author) { this.title = title; this.author = author; } </script> </head> <body> <script> var myBook = new book("WordPress Development", "Amit"); book.prototype.price = null; myBook.price = 500; document.write("<h2>Details before deleting book price</h2>"); document.write("Book title is : " + myBook.title + "<br>"); document.write("Book author is : " + myBook.author + "<br>"); document.write("Book price is : " + myBook.price); delete myBook.price; document.write("<br><h2>Details after deleting book price</h2>"); document.write("Book title is : " + myBook.title + "<br>"); document.write("Book author is : " + myBook.author + "<br>"); document.write("Book price is : " + myBook.price + "<br>"); </script> </body> </html>