JavaScript如何暂时禁用滚动？

JavaScript如何暂时禁用滚动？

该

scroll

事件无法取消。但是您可以通过 取消 以下交互事件来实现：
鼠标 和 触摸滚动 以及与滚动关联的 按钮 。

工作演示

// left: 37, up: 38, right: 39, down: 40,// spacebar: 32, pageup: 33, pagedown: 34, end: 35, home: 36var keys = {37: 1, 38: 1, 39: 1, 40: 1};function preventDefault(e) {  e.preventDefault();}function preventDefaultForScrollKeys(e) {  if (keys[e.keyCode]) {    preventDefault(e);    return false;  }}// modern Chrome requires { passive: false } when adding eventvar supportsPassive = false;try {  window.addEventListener("test", null, Object.defineProperty({}, 'passive', {    get: function () { supportsPassive = true; }   }));} catch(e) {}var wheelOpt = supportsPassive ? { passive: false } : false;var wheelEvent = 'onwheel' in document.createElement('div') ? 'wheel' : 'mousewheel';// call this to Disablefunction disableScroll() {  window.addEventListener('DOMMouseScroll', preventDefault, false); // older FF  window.addEventListener(wheelEvent, preventDefault, wheelOpt); // modern desktop  window.addEventListener('touchmove', preventDefault, wheelOpt); // mobile  window.addEventListener('keydown', preventDefaultForScrollKeys, false);}// call this to Enablefunction enableScroll() {  window.removeEventListener('DOMMouseScroll', preventDefault, false);  window.removeEventListener(wheelEvent, preventDefault, wheelOpt);   window.removeEventListener('touchmove', preventDefault, wheelOpt);  window.removeEventListener('keydown', preventDefaultForScrollKeys, false);}

更新：修复了带有被动监听器的Chrome台式机和现代移动浏览器