1.通过id获取 document.getElementById(“id”) 2.通过name获取 document.getElementsByName(“Name”) 返回的是list 3.通过标签名选取元素 document.getElementsByTagName(“tag”) 4.通过CLASS类选取元素 document.getElementsByClassName(“class”) 兼容性:IE8及其以下版本的浏览器未实现getElementsByClassName方法 5....
var$x= $('#x')//jQuery对象varx =$x[0]//DOM对象 2.jQuery本身提供方法,通过get(index)方法,得到相应的dom对象 var$v= $('#v')//jQuery对象varv =$v.get(0)//DOM对象 div的属性和方法 getElementById(id) // 获取带有指定 id 的节点(元素) appendChild(node) // 插入新的子节点(元素) remo...
①. element.cloneNode() (10). 总结:核心 DOM 操作的问题 ①. 方法名普遍比较长 ②. 操作比较僵硬 ③. 方法存在浏览器兼容性 3.JQuery概述 JQuery 是一个 DOM 操作的函数库,简化了常用的 DOM 操作,理念:Write Less, Do More.JQuery is a fast, small, and feature-rich JavaScript library. It makes ...
getElementById("myDiv").classList; for(var i = 0; i < classList.length; i++){ document.body.insertAdjacentHTML("beforeend", "" + classList[i] + ""); } } This is a paragraph inside DIV element Get Div Class List Related FAQHere are some more FAQ related to this ...
it needs to parse the selector, since jQuery can discover things by class, quality, precursor, and so on while document.getElementById just discovers components by their ID. The jQuery object is anything but a local item, so is slower to make, and it likewise has considerably more potential...
initial-scale=1.0"> Document Get Class List For An Element Using jQuery Click the button to get the list of the classes used for the below div. - Monday is the First day of a week. Get Class Class List: $(document).ready...
傳統DOM API 提供我們幾種找到特定元素的方法,如: getElementById()、getElementsByName()、getElementsByTagName()... 等等,若要由相對從屬關係去找,則要由 childNodes()、parentNode() 下手。遇到複雜一點的需求,例如要找出所有被包在 div 中 target="_blank" 的 ,以不變應萬變的寫法是先用 getElementsByTa...
在文档中获得id为foo的DOM对象varfoo=document.getElementById("foo");//将DOM对象转换成jQuery对象var$foo1=jQuery(foo);var$foo2=$(foo);//调用jQuery对象中的方法$foo1.html("Foo jQuery");$foo2.css("color","red");//方法二//获得文档中id为bar的DOM对象,将DOM包装成一个jQuery对象,调用jQuery...
id as a selector, always use#in front of it. This denotes that the following string is the id of the element. Similarly, when using class as a selector, put a (.) dot ahead of the string. And if the element is selected using its tag name, then nothing special has to be denoted...
id selector Description:Selects a single element with the given id attribute. version added:1.0jQuery( "#id" ) id:An ID to search for, specified via the id attribute of an element. For id selectors, jQuery uses the JavaScript functiondocument.getElementById(), which is extremely efficient....