The activeElement returns the currently focused element in the document. The following example demonstrates how you can use the activeElement property to check if the element with class name .name has focus: const elem = document.querySelector('.name'); if (elem === document.activeElement...
}// create the new html list itemvarnode =document.createElement("li");varlabel = coffee.name+' '+ size;vartextnode =document.createTextNode(label+' price: $'+price); node.appendChild(textnode);document.getElementById('products').appendChild(node); }// now all we need to do is call...
window.onload = function() { // Look up a element let form = document.querySelector("form#shipping"); // Register an event handler function on the form that will be invoked // before the form is submitted. Assume isFormValid() is defined elsewhere. form.onsubmit = function(event) {...
activeElement Returns the currently focused element in the document Document addEventListener() Attaches an event handler to the document Document, Element adoptNode() Adopts a node from another document Document alert() Displays an alert box with a message and an OK button Window altKey Returns whet...
问如何在javascript(chrome扩展)中获取选项卡或窗口的当前URLEN要在浏览器中执行 JavaScript 脚本，首先你...
const focused = document.hasFocus(); 示例:检测页面是否获得焦点 functioncheckPageFocus() { const info= document.getElementById('message');if(document.hasFocus()) { info.innerHTML= '该页面获得了焦点'; }else{ info.innerHTML= '该页面没有获得焦点'; ...
insertBefore(document.getElementById('myId'), 'before'); // before ... 13.isBrowser:检查是否为浏览器环境 此代码段可用于确定当前运行时环境是否为浏览器。这有助于避免在服务器(节点)上运行前端模块时出错。 const isBrowser = () => ![typeof window, ...
Make focus re-triggering not focus the original element back (#4382, dbcffb39) Don’t crash if an element is removed on blur (#4417, 5c2d0870) Remove the event.which shim (#3235, 1a5fff4c) remove jQuery.event.global (18db8717) Only attach events to objects that accept data – for ...
If set to true, the modal will be closed if any element outside of the modal is focused on or clicked. Accepts a Boolean.closeStyleDefault: { display: 'none', visibility: 'hidden' }The style to apply to the modal after it has been closed. Accepts an Object of keys and values that...
The else part will set the focus to the element. However, the browser doesn't scroll the page to this element. I need to scroll to the focused element. That is what the anchor code is used. Yuriy Fuksenko Ranch Hand Posts: 413 posted 20 years ago starting with ie4, you can do...