JS之調整視窗大小事件
阿新 • • 發佈：2022-05-25
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <meta http-equiv="X-UA-Compatible" content="ie=edge"> <title>Document</title> <style> div{ width: 200px; height: 200px; background-color: pink; } </style> </head> <body> <script> window.addEventListener('load', function() { var div = document.querySelector('div'); window.addEventListener('resize', function() { console.log(window.innerWidth); console.log('變化了'); if (window.innerWidth <= 800) { div.style.display = 'none'; } else { div.style.display = 'block'; } }) })</script> <div></div> </body> </html>