jquery get element by class

First of all, the method of JS acquisition, which is more troublesome than the jquery method, followed by the jquery method for comparisonJS is a lot more troublesome than jquery, mainly because the FF browser, the FF browser, will take your newline as the most DOM element.Native JS Gets the child element under the

First of all talk about the acquisition of JS, which is much more cumbersome than the jquery method, followed by the jquery method for comparison JS method is much more troublesome than jquery, mainly because the FF browser,FF browser will be your line of exchange as the most DOM element Native JS Gets the child

Recent work has always encountered a variety of father Ah son Ah brothers and sisters Ah, every time to check, this time to organize a internationals ~ First, we'll have dry goods: "JS access Mode" "How jquery is captured." Jquery.parent (expr) for the Father node, you can filter through expr, such as $ ("span"). Parent () or $ ("span"). Parent (". Class") jquery.parents (expr , simi

Recently work has always encountered to take all kinds of Father son Ah brothers and sisters Ah, every time to check, this time to tidy up a internationals ~"How to Get JS"function dom () {var a = document.getelementbyidx_x_x ("Dom");var B = a.childnodes; Get all child nodes of avar c = A.parentnode; Gets the parent node of avar d = a.nextsbiling; Get the next si

First, get the parent element 1. Parent ([expr]): Gets all the parent elements of the specified element Copy Code code as follows: $ (document). Ready (function () { $ ("a"). Parent (). addclass (' A_par '); }); Firebug View jquery Parent Effect Second,

Currently several borrowing jquery Select click Element to get the current click Element Information,$ (document). Click (function (e) {//) to trigger this event at any point in the page ( e.target). attr ("id"); E.target = clicked Target})This method is needed to obtain the current Click

Reprint: https://www.cnblogs.com/ooo0/p/6278102.htmlJS jquery get Element (parent node, child node, sibling node)One, JS get Element (parent node, child node, sibling node)varTest = document.getElementById ("Test"); varparent = Test.parentnode;//parent Node 　　 varChils = Tes

1.js getting elementsvarTest = document.getElementById ("Test");varparent = Test.parentnode;//parent NodevarChils = Test.childnodes;//All child nodesvarfirst = Test.firstchild;//first child nodevarlast = Test.lastchile;//Last child nodevarprevious = test.previoussbiling;//Previous sibling nodevarNext = test.nextsbiling;//Next Sibling node2.jquery getting elements$ ("#test1"). Parent ();//parent Node$ ("#test1"). Parents ();//All parent Nodes$ ("#test1

Summarize:child element selectors in pseudo-classes:The first type:: First-child: Last-child: Nth-child (): Nth-last-child ()The second type:: Only-child: Only-of-typeThe third type of:: First-of-type: Nth-last-of-type (): Nth-of-type ()Characteristics:Pseudo-class selectors are very characteristic:1. Position: Directly through the pseudo-class selector directly

Iframe is often used in web development, and elements that need to be used in the iframe in the parent window or in the iframe framework JsObtain the elements in IFRAME in the parent window. 1,Format: window. frames ["iframe name value" 2.16.doc ument. getElementByIdx_x ("Control ID in iframe"). click ();Example: window. frames ["ifm" mirror.doc ument. getElementByIdx_x ("btnOk"). click ();2,Format:Var obj = document. getElementByIdx_x ("iframe name"). contentWindow;Var ifmobj1_obj.doc ument. ge

This article mainly introduces the sample code for JS and JQUERY to get the page size, scroll bar location, and element location. For more information, see. js and jquery. The Code is as follows: // Page location and window size Function GetPageSize (){Var scrW, scrH;If (window. innerHeight window. scrollMaxY){// Mo

Get one of the matching elements: index means to get the first few matching elements, which allows you to select an actual DOM element and manipulate it directly, rather than through the JQuery function. $ (this). Get (0) is equivalent to $ (this) [0],The meaning of this pas

get the parental element, so getting the parent of an element can use the $ (selector). Parent (). parent (); Example below Creating HTML code and CSS styles Class1Class2Class3 div{padding:10px 20px;border:4px solid #ebcbbe;}div.class1{width:200px;height:120px;} Writing jquery Code $ (function () {$ ("DIV.CLASS

How does jquery get the first or last child element? Through the Children method, children ("Input:first-child")$( This). Children ("Input:first-child"). Val (); $ ( This). Children ("Input:last-child"). Val ();> Selector, $ (". Items>input:first"in this article, we'll turn to a "jquery selection method Encyclopedia" h

This article mainly introduces how to obtain the code of a specific sub-element in jquery. If you need it, you can refer to some JQUERY applications that have been made earlier, the selector does not have high requirements, like "$ ('. class ') "," $ (' # id') "," $ ('# id>. class