测试页面有内嵌的CSS元素,以及引入的Javascript代码,即getOffset函数。测试页面有以下几个元素需要注意,首先就是id为target的元素,它是我们要获取绝对坐标的元素,它存在一个div元素中,这个div元素随着测试的进行,它的position是否为静态,是否又边框,是否又滚动条会发生变化,从而测试我们函数的健壮性。每次测试的触发都是...
var x = obj.getBoundingClientRect().left; var y = obj.getBoundingClientRect().top; alert("方法一:"+ x +","+ y); //方法二 alert("方法二:"+ GetObjPos(obj)['x'] +","+ GetObjPos(obj)['y']);//x坐标 var xd = getElementPos("deleteDiv"); alert("方法三:"+ xd.x+","...
你还可以使用 Array.from() 将其转换为数组。returnArray.from(this.items).indexOf(this.getSelectedItem());}// 跳转到指定索引的图片slideTo(idx){constselected=this.getSelectedItem();if(selected){// 将之前选择的图片标记为普通状态selected.className="slider-list__item";}constitem=this.items[idx];...
-->//通过js来设置标签的初试显示位置functionpositionMessage(){if(!checkCompatibility)return;varele=document.getElementById("message");ele.style.position="absolute";ele.style.top="100px";ele.style.left="50px";}//通过style属性改变标签的显示位置functionmoveMessage(){varele=document.getElementById("...
var element = document.getElementById('animate');element.style.position = 'absolute';var start = null;function step(timestamp) {if (!start) start = timestamp;var progress = timestamp - start;// 元素不断向左移,最大不超过200像素element.style.left = Math.min(progress / 10, 200) + '...
varelement =document.getElementById('animate'); element.style.position ='absolute'; varstart =null; functionstep(timestamp){ if(!start) start = timestamp; varprogress = timestamp - start; // 元素不断向左移,最大不超过200像素 element.style.l...
In this case, add position: absolute; when necessary. The plugin uses the data attribute or JavaScript option to determine where to position the element from there. Follow the above steps to set your CSS for either of the usage options below. Via data attributes To easily add affix behavior...
position: absolute;right: -10px;top: -30px; color:red; display: none; } 点赞 +1 var div1 = document.getElementById('father1'); var span1 = document.getElementById('son1') div1.onclick = function () { span1.style...
In this case, add position: absolute; when necessary. The plugin uses the data attribute or JavaScript option to determine where to position the element from there. Follow the above steps to set your CSS for either of the usage options below. Via data attributes To easily add affix behavior...
Math.PI returns the value of PIMath.round(x) returns the rounded value of xMath.pow(x, y) returns the value of x to the power of yMath.sqrt(x) returns the square root of xMath.abs(x) returns the absolute (positive) value of xMath.ceil(x) returns the value of x rounded upMath...