Element.prototype.removeElement =function() {this.parentElement.removeChild(this); } NodeList.prototype.removeElement= HTMLCollection.prototype.removeElement =function() {for(vari =this.length - 1; i >= 0; i--) {if(this[i] &&this[i].parentElement) {this[i].parentElement.removeChild(this[i...
修改表单元素: value、type、disabled等 修改元素样式: style、className 6.5 查 DOM提供的API 方法: getElementById、getElementsByTagName 古老用法 不太推荐H5提供的新方法: querySelector、querySelectorAll 提倡 利用节点操作获取元素: 父(parentNode)、子(children)、兄(previousElementSibling、nextElementSibling) ...
lastElementChild: 指向最后一个子元素,lastChild 的元素版 previousElementSibling: 指向前一个同辈元素,previousSibling 的元素版 nextElementSibling: 指向后一个同辈元素,nextSibling 的元素版 var child = element.firstElementChild; while(child != element.lastElementChild) { processChild(child); //已知其是元...
hello world点我$(document).ready(function(){$("#btn").click(function(){// 添加一个元素$('#demo').remove();});}); remove() 会删除div以及它的子元素
childNodes[2]);//删除第四个optionselect.remove(2);function remove111(){var parent = document.getElementById("");parent.removeChild(需要删除的元素的ID);}找到需要删除元素的父节点，通过removeChild来实现body,td,div,a,input{font:menu;line-height:150%}...
The outermost wrapper element should have the .popover class. title string | function '' Default title value if title attribute isn't present. If a function is given, it will be called with its this reference set to the element that the popover is attached to. trigger string 'click' How...
JavaScript makes it relatively easy to manipulate the DOM (i.e., add, modify, and remove elements), but does nothing to promote doing so efficiently. A common example is code that adds a series of DOM elements one at a time. Adding a DOM element is an expensive operation, and code tha...
Add an element to an arrayRemove the last element of an array - pop()Join all elements of an array into a string - join()Join two arrays - concat()Join three arrays - concat()Add an element to position 2 in an array - splice()Convert an array to a string - toString()Add new ...
myElement.addEventListener('click', functionA); myElement.addEventListener('click', functionB); 当元素被点击时两个函数都会工作: 该使用哪种机制 在三种机制中,绝对不应该使用 内联事件处理器,内联方式严重违背了HTML和JavaScript职责分离的原则。 另外两种是相对可互换的,至少对于简单的用途: 事件处理器属性具有...
element.setAttribute(attribute, value)Change the attribute value of an HTML element Adding and Deleting Elements MethodDescription document.createElement(element)Create an HTML element document.removeChild(element)Remove an HTML element document.appendChild(element)Add an HTML element ...