HTMLDivElement.prototype.onsizechange=function(handleFunction) {varelement=this;varlastWidth=element.clientWidth;varlastHeight=element.clientHeight; setInterval(function() {if(lastWidth===element.clientWidth&&lastHeight===element.clientHeight)return;if(typeof(handleFunction)=='function') { lastWidth=ele...
AI代码解释 document.getElementByClassName('类名'); 案例展示: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 <!DOCTYPEhtml>Document//1.通过类名获得对象varbox=document.getElementsByClassName('div');console.log(box);//2.document.querySelector('.box')我们可以获得选择...
DOCTYPEhtml>functiongetLocalTime(){vardate =newDate();document.getElementById("getLocalTime").innerHTML= date.toLocaleString(); }/* 重复调用 */setInterval("getLocalTime()",1000); 每个Date对象都只是计算机的一个毫秒级快照,Date对象只是保存了它被创建时的时间信息 Date 对象的常用方法 5.2 Image对象...
changeImageSrc() { const image = document.getElementById('myImage'); if (window.innerWidth >= 1440) { image.src = 'high-res-image.jpg'; } else { image.src = 'low-res-image.jpg'; } } window.addEventListener('resize', changeImageSrc); window.addEventListener('load', changeImage...
function changeImg(){ i++; //获取图片位置并设置src属性值 document.getElementById("img1").src="../img/"+i+".jpg"; if(i==3){ i=0; } } //2.书写显示广告图片的函数 function showAd(){ //3.获取广告图片的位置 var adEle = document.getElementById("img2"); ...
element.style.display = 'block'; element.style.width = '100px'; element.style.backgroundColor = 'red'; element.style.border = '2px'; element.style.fontSize = '12px'; element.style.color = 'white'; element.style.margin = '20px'; ...
element Ui 分页size-change事件触发同时也出发了current-change事件,导致调用两次接口 {代码...} {代码...}
注意,该对象的属性值都是字符串,设置时必须包括单位,但是不含规则结尾的分号。比如,divStyle.width不能写为100,而要写为100px。 另外,Element.style返回的只是行内样式,并不是该元素的全部样式。通过样式表设置的样式,或者从父元素继承的样式,无法通过这个属性得到...
Toggles the dropdown menu of a given navbar or tabbed navigation. Events All dropdown events are fired at the .dropdown-menu's parent element. All dropdown events have a relatedTarget property, whose value is the toggling anchor element. Event TypeDescription show.bs.dropdown This event fires...
Regardless of whether you call your dropdown via JavaScript or instead use the data-api, data-toggle="dropdown" is always required to be present on the dropdown's trigger element. Options None Methods $().dropdown('toggle') Toggles the dropdown menu of a given navbar or tabbed navigation...