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) { console.log('Element has focus!'); } else { console.log(`Element...
= { // element是当前元素,可以通过getElementById(id)获取 // type 是事件类型,一般是click ,也有可能是鼠标、焦点、滚轮事件等等 // handle 事件处理函数 addHandler: (element, type, handler) => { // 先检测是否存在DOM2级方法,再检测IE的方法,最后是DOM0级方法(一般不会到这) if (element.addEventLi...
function getThis()( console.log(this) } getThis(); //returns Window {postMessage: ƒ, blur: ƒ, focus: ƒ, close: ƒ, frames: Window, ...} Listing 5-2Get the Current Context of a Function in the Global Scope 代码中调用函数的地方称为执行上下文。执行上下文决定了this 的值。注...
If a function is given, it will be called with its this reference set to the element that the tooltip is attached to. trigger string 'hover focus' How tooltip is triggered - click | hover | focus | manual. You may pass multiple triggers; separate them with a space. manual cannot be ...
If caused by a click, the clicked element is available as the relatedTarget property of the event. hide.bs.modal This event is fired immediately when the hide instance method has been called. hidden.bs.modal This event is fired when the modal has finished being hidden from the user (will ...
Javascript Event事件-总结 一、事件类型 例如:mouseover鼠标移动到、keydown键盘按下 二、事件目标 是发生的事件或与之相关的对象,window、document和Element对象是最常见的事件目标 三、事件对象 是与特定事件相关且包含有关该事件详细信息的对象 用来指
If a function is given, it will be called with its this reference set to the element that the tooltip is attached to. trigger string 'hover focus' How tooltip is triggered - click | hover | focus | manual. You may pass multiple triggers; separate them with a space. manual cannot be ...
'focus select': 'onFocus' }, FieldSelection.prototype.events), onFocus: function() { if ( // check values of fields. for example I need to check many fields this.field_manager.fields.name_field_1.get_value() == 'value1' &&
If a function is given, it will be called with its this reference set to the element that the tooltip is attached to. trigger string 'hover focus' How tooltip is triggered - click | hover | focus | manual. You may pass multiple triggers; separate them with a space. manual cannot be ...
if (isNaN(element.value)) return false; props.setcode([...props.code.map((d, indx) => (indx === index ? element.value : d))]); //Focus next input if (element.nextSibling) { element.nextSibling.focus(); } }; I made OTP input in React You can see this image. One line is...