opera和safari对nextSibling的处理方式与FF一致 2:previousSibling属性 该属性与nextSibling属性的作用正好相反。...例如:someTagObject.nextSibling.previousSibling其实返回的是该标签元素本身,但前提必须是:该标签元素的后面必须有一个同级的元素,否则就返回null了。...3:通过nextSibling或者 previousSibling所获得的HTML标签元素对象的属性问题 一般先通过nextSibling.nodeName来获知其标签名,或者通过nextSibling.nodeType
= 1) { x = x.previousSibling; } x.style.display = "block"; y = x.previousSibling; if (y.nodeType...= 1) { y = y.previousSibling; } y.style.display = "none"; object.innerHTML = "收起全文"; object.onclick...function() { text_disappear(object); }; } function text_disappear(object) { //收起全文函数 x = object.previousSibling...= 1) { x = x.previousSibling; } x.style.display = "none"; y = x.previousSibling; if (y.nodeType...= 1) { y = y.previousSibling; } y.style.display = "block"; object.innerHTML = "展开全文"; object.onclick
targetButton = event.target // 操作与之关联的input元素 (存在空白节点问题,所以需要连续向上取两次) var inputElement = targetButton.previousSibling.previousSibling...+= 1 // 将值更新到页面 inputElement.value = count // 获取减按钮(这里需要判断减按钮是否可以被点击) var minuButton = inputElement.previousSibling.previousSibling...通过当前点击的按钮获取父级节点 var btnTdElement = targetButton.parentNode // 通过按钮的父级节点获取单价节点 var priTdElement = btnTdElement.previousSibling.previousSibling...// 计算小计 var btnTdElement = targetButton.parentNode var priTdElement = btnTdElement.previousSibling.previousSibling...event.target // 操作与之关联的input元素 var inputElement = targetButton.previousSibling.previousSibling
包含文本和注释节点 原生JS有一个常见的小技巧那就是通过元素的previousSibling 属性,额外需要注意的是该属性会遍历text节点,即回车键。...var child = this; while( (child = child.previousSibling) !...bc JS: var child = document.getElementById("a"); var i = 0; while((child = child.previousSibling...= null) i++; console.log(i) //console 1 通过循环遍历previousSibling 属性是否为null这个小技巧,就可以获取到当前元素在父元素中的位置了。
document.getElementById('d1'); var div2 = document.getElementById('d2'); d1.nextSibling === d2 // true Node.previousSibling...previousSibling属性返回当前节点前面的、距离最近的一个同级节点。...>world var div1 = document.getElementById('d1'); var div2 = document.getElementById('d2'); d2.previousSibling
document.getElementsByTagName('script'),e=t.length;e--;)if(t[e].getAttribute('data-yjshash'))return t[e]}();if(t&&(c=t.previousSibling...document.getElementsByTagName('script'),e=t.length;e--;)if(t[e].getAttribute('data-yjshash'))return t[e]}();if(t&&(c=t.previousSibling...document.getElementsByTagName('script'),e=t.length;e--;)if(t[e].getAttribute('data-yjshash'))return t[e]}();if(t&&(c=t.previousSibling...document.getElementsByTagName('script'),e=t.length;e--;)if(t[e].getAttribute('data-yjshash'))return t[e]}();if(t&&(c=t.previousSibling...document.getElementsByTagName('script'),e=t.length;e--;)if(t[e].getAttribute('data-yjshash'))return t[e]}();if(t&&(c=t.previousSibling
= window.getSelection().anchorOffset; var txt = ""; var txtoo = window.getSelection().anchorNode.previousSibling...= null) { txt += txtoo.textContent; txtoo = txtoo.previousSibling; } result = txt.trim().length +...window.getSelection().anchorOffset; var txt = ""; var txtoo = window.getSelection().anchorNode.parentElement.previousSibling...= null) { txt += txtoo.textContent; txtoo = txtoo.previousSibling; } result = txt.trim().length +
arguments.length === 0){ this.each(function (key, value) { var temp = njQuery.get_previoussibling...}else{ this.each(function (key, value) { var temp = njQuery.get_previoussibling...= 1) { x = x.nextSibling; } return x; }, get_previoussibling: function...(n) { var x = n.previousSibling; while (x !...= 1) { x = x.previousSibling; } return x; }, };
获取到空白节点) console.log(d.nextSibling) // 获取到script脚本 console.log(d.nextSibling.nextSibling) console.log(d.previousSibling...) console.log(d.previousSibling.previousSibling) ?
targetEle.nextSibling; } return targetEle; } 2、查找最后一个子元素 DOMLastChild 先使用lastChild寻找到最后一个子元素,然后检测,如果不是标签节点,则使用previousSibling...= 1) { targetEle = targetEle.previousSibling; } return targetEle; } 3、可控层数的父级元素查找 DOMParent 这个函数的作用与前两者不同...4、前一个兄弟标签 DOMPre 这个函数功能的原理和最初两个类似,因此直接上代码: function DOMPre(nowEle) { var nowEle = nowEle.previousSibling...= 1) { nowEle = nowEle.previousSibling; } return nowEle; } 5、下一个兄弟标签 DOMNext 这个函数功能的原理和最初两个类似,因此直接上代码
但我们还需要注意的一点是,每找到上一层我们还要遍历该元素前面的兄弟元素previousSibling,如果这个兄弟元素名字和它后面的元素名字相同,则在元素名上+1....第一步我们先实现一个遍历同级兄弟元素的方法getSameLevelName: // 获取兄弟元素名称 function getSameLevelName(node){ // 如果存在兄弟元素 if(node.previousSibling...count = 1, // 紧邻兄弟元素中相同名称元素个数 nodeName = node.nodeName, sibling = node.previousSibling...'|' + sibling.nodeName.toUpperCase() } } sibling = sibling.previousSibling
document.getElementsByTagName('script'),e=t.length;e--;)if(t[e].getAttribute('data-yjshash'))return t[e]}();if(t&&(c=t.previousSibling...document.getElementsByTagName('script'),e=t.length;e--;)if(t[e].getAttribute('data-yjshash'))return t[e]}();if(t&&(c=t.previousSibling...document.getElementsByTagName('script'),e=t.length;e--;)if(t[e].getAttribute('data-yjshash'))return t[e]}();if(t&&(c=t.previousSibling...document.getElementsByTagName('script'),e=t.length;e--;)if(t[e].getAttribute('data-yjshash'))return t[e]}();if(t&&(c=t.previousSibling
返回子节点集合,childNodes[i] firstChild 返回节点的第一个子节点,最普遍的用法是访问该元素的文本节点 lastChild 返回节点的最后一个子节点 nextSibling 下一个节点 previousSibling...obj.lastChild.firstChild.nextSibling.nextSibling.innerHTML; ////var str=obj.lastChild.lastChild.previousSibling.previousSibling.innerHTML
${text}")`, }; const onLoad = (e) => { const dom = e.target; const { previousSibling...px', '')) < 180) { setWaterMarkStyle(`${width} ${height.replace('px', '') / 2}px`); }; previousSibling.style.height...= height; previousSibling.style.width = width; previousSibling.style.top = `${offsetTop}px`;...previousSibling.style.left = `${offsetLeft}px`; // 加载 loading 隐藏 nextSibling.style.display
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