다음은 JavaScript switch 문에서 공통 코드 블록을 구현하는 코드입니다 -
예시
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8" /> <meta name="viewport" content="width=device-width, initial-scale=1.0" /> <title>Document</title> <style> body { font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif; } .result { font-size: 20px; font-weight: 500; } </style> </head> <body> <h1>JavaScript Switch statement</h1> Enter day 1-7<input type="text" class="day" /><button class="Btn"> CHECK </button> <div style="color: green;" class="result"></div> <h3> Click on the above button to check which day it is </h3> <script> let dayVal = document.querySelector(".day"); let resEle = document.querySelector(".result"); document.querySelector(".Btn").addEventListener("click", () => { switch (parseInt(dayVal.value)) { case 1: resEle.innerHTML = "It's monday"; break; case 2: resEle.innerHTML = "It's tuesday"; break; case 3: resEle.innerHTML = "It's wednesday"; break; case 4: resEle.innerHTML = "It's thursday"; break; case 5: resEle.innerHTML = "It's friday"; break; case 6: resEle.innerHTML = "It's saturday"; break; case 7: resEle.innerHTML = "It's sunday"; break; default: resEle.innerHTML = "Enter a value between 1 - 7"; break; } }); </script> </body> </html>
출력
위의 코드는 다음과 같은 출력을 생성합니다 -
1-7 사이의 숫자를 입력하고 CHECK -
를 클릭하면