javascript getelementsbyclassname

In the DOM3 has joined the Getelementsbyclassname this method, however IE9, 10 other versions are not supported, this is a piece of pain!This can be resolved so far, that the browser does not support this method, if the support does not matter, if not supported, in the Document object to add Getelementsbyclassname this method, such a writing has the advantage that no matter whether there is no native functi

This is my 1th technical note, to share with you: Solve IE8 (and below) does not support the Getelementsbyclassname method. If there is a wrong place, please tell me the message, I corrected in time, one is to update my cognition, and secondly also do not mislead others, thank you.When we set the style of the element, we can say that the most used is the class. Unfortunately, in the low version of IE (IE8 and below), we cannot use

Currently, this solution can be used to determine that the browser does not support this method. If it does not support this method, add the getElementsByClassName Method to the document Object. This method has the following advantages, no matter whether there are native functions, you do not need to modify the code. Generally, getElementsByTagName ("*") is used to retrieve all elements in the document, traverse them, and use regular expressions to f

1 functiongetelements (node, className, item) {2 if(node.getelementsbyclassname) {3 returnNode.getelementsbyclassname (ClassName) [item];4}Else {5 varResults =NewArray ();6 varallele = node.getelementsbytagname (' * '));7 for(vari = 0, L = allele.length; I ) {8 if(Allele[i].classname.indexof (className)! =-1) {9 Results.push (Allele[i]);Ten } One } A returnResults[item]; - } -

You typically use getElementsByTagName ("*") to remove all elements of a document, and then iterate through it, using regular expressions to find matching elements to return to an array. Because IE5 does not support document.getElementsByTagName ("*"), use branch document.all to prevent errors The following method perfectly supports document writing. The code is as follows Copy Code if (!document.getelementsbyclassname) {Document.getelementsbyclassname = function (C

I personally think this example may not be of practical significance, but it can be a good understanding of the sizzle selection process.Instance description Let's take a look at an example: "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> Looking at the three expressions of the above three results, it is estimated that many people will think that the results must be the same. Good, except IE6/7/8, the results should be the same. Result (1 ): console.log(Sizzle(

Getelementsbyclassname () finds all HTML elements with the same class name.The method returns a collection. Note that it is not an array, although you can also use the [index] method to get the elements.Common properties and methods for this collectionThe Length property, which returns the number of elements of the item (index) method, returns the DOM element labeled index in the collection, with the index as an integer, numbering from 0, or using the

function Getbyclass (clname,parent) {var oparent = Parent?getelementbyid (parent):d ocument,//ternary operation judging the arguments passed in are true is the parent, for false is document; Eles = [],//Declare a variable, also an array; elemens = Oparent.getelementsbytagname (' * '); Get all the non-signed elements; for (Var i=0;iElemens. length;i++) {//Loop Elemens all tags inside if (elemens[i].classname==clname) { //Judge if the classname of the label equals the

if (!document.getElementsByClassName) { document.getElementsByClassNameForMobile = function(search) { var d = document, elements, pattern, i, results = []; if (d.querySelectorAll) { // IE8 return d.querySelectorAll("." + search); } if (d.evaluate) { // IE6, IE7 pattern = ".//*[contains(concat(‘ ‘, @class, ‘ ‘), ‘ " + search + " ‘)]"; elements = d.evaluate(pattern, d, null, 0, null); while ((i = elements.iterateNext())) {

/** * node is the search starting point for the DOM tree, and ClassName is the name of the class that needs to be searched. * If the appropriate getelementsbyclassname is already present on the incoming node, return to the corresponding node list * If this method is not supported, the new function will traverse all tags to find the corresponding class name element * */ function

At present, it can be resolved, the browser support does not support this method, if support is not, if not supported, in the Document object to add Getelementsbyclassname this method, according to interested friends can understand the nextif(Navigator.appname = = ' Microsoft Internet Explorer ') {Document.getelementsbyclassname=function() { varTtagname = "*"; if(Arguments.length > 1) {Ttagname= Arguments[1]; } if(Arguments.l

DOM does not have the getElementsByClassName function. Only getElementsByTagName and getElementsById are supported. (At least IE and FF2 are not supported yet. I heard that Firefox3 is available)The following is an example of my collection and sorting. We use the function to simulate the getElementsByClassName function. Id = "OK" A Method written based on JSCode Code highlighting produced by Actipro Cod

This can be resolved so far, that the browser does not support this method, if the support does not matter, if not supported, in the Document object to add Getelementsbyclassname this method, such a writing has the advantage that no matter whether there is no native function you do not have to modify the code. You typically use getElementsByTagName ("*") to remove all elements of a document, and then iterate through it, using regular expressions to fi

　　"Nav">class="Topmenu">"#"> Product introduction class="Submenu"> "#"> Products 1"#"> Products 2"#"> Products 3"#"> Products 4"#"> Products 5"#"> Products 6class="Topmenu">"#"> Service Introduction class="Submenu"> "#"> Service 1"#"> Service 2"#"> Service 3"#"> Service 4class="Topmenu">"#"> Success Stories class="Submenu"> "#"> Case 1"#"> Case 2"#"> Case 3"#"> Case 4class="Topmenu">"#"> About Us class="Submenu"> "#"> We 1"#"> We 2"#"> We 3"#"> We 4class="Topmenu">"#"> Contact Us class="Submenu"

function Getelementsbyclassname (parent,tag,classname) {var aels = parent.getelementsbytagname (tag);var arr = [];for (var i = 0; i var aclassname = Aels[i].classname.split (");for (var j = 0; J if (aclassname[j] = = ClassName) {Arr.push (Aels[i]);If the classname contains ' box ' then jump out of the loopbreak;//prevents an element from appearing multiple times the same class is added multiple times}};};return arr;}JS Gets the element

Compatibility issues with Getelementsbyclassname ()

　　 Troubleshoot compatibility issues with Getelementsbyclassname

Web page development, in many cases we need to manipulate the same class name elements, that is, class the same element. Yesterday to participate in the written exam, there is a related topic did not answer: JavaScript Gets the node with class test in the page Then collected a number of relevant data, in this article listed in the two I think the better method, deficiencies, but also hope that everyone criticized. If we have a better way, I hope we

The code is as follows Copy Code Document.getelementsbyclassname = function () {var ttagname = "*";if (Arguments.length > 1) {Ttagname = arguments[1];}if (Arguments.length > 2) {var pobj = arguments[2]}else{var pobj = document;}var

First. Move the mouse to the corresponding category, and the red triangle below will automatically follow, slowly following. No matter how many. Javascriptcode: [javascript] functionchangeCoord (id, left) {$ $ (id). style. leftleft;} fu... Syntax First. Move the mouse to the corresponding category, and the red triangle below will automatically follow, slowly following. No matter how many. Javascript code: