Jquery get class with attribute filter(function() { return $(this). attr ()). class') - 4355 operations per second getElementsByClassName('class') - 94636 operations per second As you can see, for this simple operation the jQuery option is approximately 22 times slower than Here’s how you can get objects by ID Selector (#id), by Class Selector (. Aug 5, 2025 · Apart from attributes, we can also use custom element attributes. Feb 1, 2013 · I am trying to go through an element and get all the attributes of that element to output them, for example an tag may have 3 or more attributes, unknown to me and I need to get the names and valu Mar 8, 2010 · After getting the element as jQuery object via other means than its class, then var className = $('#sidebar div:eq(14)'). bar"). There's a couple of ways you can reference the span tag, but all of them end with " . When this method is used to return the attribute value, it returns the value of the FIRST matched element. Simplify DOM manipulation and styling by targeting elements with the class attribute effortlessly. Another reason that I wish jQuery core had a data specific selector. com Mar 11, 2025 · This comprehensive tutorial explores how to get class names in jQuery, covering essential methods such as . Learn step-by-step techniques to retrieve class names effectively and enhance your web development skills. How to Get Class List of an Element with jQuery Topic: JavaScript / jQuery Prev | Next Answer: Use the jQuery attr() Method You can simply use the attr() method to get the class list i. Using this property, the user can change the class of an element to the desired class. Oct 8, 2009 · NOTE: In jQuery 1. sort span. Let's try out the following example to understand how it basically works: Feb 10, 2021 · Also, if you work with data attributes a lot in your jQuery scripts, you might want to consider using the HTML5 custom data attributes plugin. 6, they finally fixed the attr method, and you should now use $(). foo. For class selectors, jQuery uses JavaScript's native getElementsByClassName() function if the browser supports it. val() : ""); }); But I am now using this on a page that has some other checkboxes that I don't want to include. data () function, since this doesn't always render an attribute and soemtimes uses browser specific storage mechanism. The attr () method sets or returns attributes and values of the selected elements. If you are inside an event handler or other jQuery method, where the element is the pure DOM node without wrapper, you can use: this. The option tag has a class set to it. For example: You can use the CSS attribute selectors to find an HTML element based on its data-attribute value using jQuery. 2, the . An element's data-* attributes are retrieved the first time the data() method is invoked upon it, and then are no longer accessed or mutated (all values are stored internally by jQuery). Let's take a look at the following example to understand how it actually works: Here’s how you can get objects by ID Selector (#id), by Class Selector (. One very important part of jQuery is the possibility to manipulate the DOM. Below is my HTML and my code, I am not too sure what am doing wrong to get Jul 12, 2017 · The selector matches multiple elements, but the events don't get bound to the set as a whole, but to each individual element in that set. Feb 22, 2019 · Output: Before click on the button: After click on the Text button: After click on the Html button: Get Attributes The jQuery attr () method is used to get attribute values of DOM objects. Of course you can select multiple elements, when adding classes: Jan 27, 2010 · Jquery - How to find an element using class and attribute Asked 15 years, 9 months ago Modified 15 years, 9 months ago Viewed 47k times Get the value of an attribute for the first element in the set of matched elements or set one or more attributes for every matched element. Live Demo <html> <head> <title>jQuery Selector</title> Aug 18, 2010 · Learn how to retrieve the name and value attributes of an input element using jQuery on Stack Overflow. Once the property was changed, it was the browser that updated the attribute accordingly. each () method. So triggering the event on one of those elements will not trigger the events on the other elements. Before jQuery version 1. Live Demo <html> <head> <title>jQuery Selector</title> Apr 3, 2012 · Ryan Boudreaux continues his tutorial on getting acquainted with jQuery by showing you how to get objects by ID and Class selectors and by Tag and Attribute. Nov 16, 2010 · I worry that this won't work if data was added via jQuery . How would I change the above code to only look at checked checkboxes that have a certain class on them? Get Child Element from Parent It is a common task in web development to retrieve child elements by their IDs. attr ('sortcat'); " I guess it depends on how specific you want to be and how flexible you need to be if there's a few other p tags with anchor tags and spans inside. attr('data-foo')). attr () method to get the value of an element's attribute has two main benefits: First part of the question, getting the attribute values into an array. It's important to note that the . I know I can get all checked checkboxes on a page using this: $('input[type=checkbox]'). Mar 21, 2013 · Pure JS vs jQuery Pure JavaScript will be significantly faster as you can see by this jsPerf which pits document. It's based on the existing CSS Selectors, and in addition, it has some own custom selectors. Sep 3, 2013 · Chain the class selectors, then filter based on the data parameter: $(function() { $("div. $("li"). g. addClass() method manipulated the className property of the selected elements, not the class attribute. Using jQuery's . click(function() { jQuery - Get Standard Attributes jQuery attr () method is used to fetch the value of any standard attribute from the matched HTML element (s). hasClass (). attr('sortcat'); You can select elements based upon their tag Apr 16, 2012 · Below mentioned is the way to get the element by Class Name var Tag = replaceContentInContainer('className'); function replaceContentInContainer(matchClass) { var elems = document. This allows you to write even more readable code by using . Example: This example uses attr () method to get the attribute value. We will use jQuery Selectors to match the desired element (s) and then we will apply attr () method to get the attribute value for the element. 4. class), by Tag, and Attribute (. e. each(function () { var sThisVal = (this. 3, data-* attributes are used to initialize jQuery data. Why am I not gett See full list on api. Sep 21, 2013 · I'm trying to get the class of the selected option and use that in a compare statement to find which class it is. data("id") == "12345 Sep 26, 2016 · I am trying to grab the attribute value from the closest element with the class specified but keep getting back undefined. Compare this selector with the Attribute Contains Word selector (e. Jan 18, 2021 · The className property is used to set or return the value of an element’s class attribute. className // for classes, and this. The attribute selectors provide a very powerful way to select elements. class') selector for smoother, more efficient web design. Explore the potential of jQuery's ('. list of all the classes that are assigned to an element using jQuery. 12/2. attr('class'); should do the trick. I get an undefined value. Feb 27, 2019 · jQuery has various methods for CSS manipulation which are listed below: addClass (): Adds one or more classes to the selected elements removeClass (): Removes one or more classes from selected elements toggleClass (): Toggles between adding or removing classes from selected elements css (): Sets or returns style attribute jQuery addClass () Method: The addClass is used to add more property to HTML5 data-* Attributes Since jQuery 1. attr () method gets the attribute value for only the first element in the matched set. prop (), and . jquery. $('p. Apr 3, 2012 · Ryan Boudreaux continues his tutorial on getting acquainted with jQuery by showing you how to get objects by ID and Class selectors and by Tag and Attribute. For the ID use . Elevate user experience and streamline coding with this powerful tool. The class names are space separated. To get the value for each element individually, we need to rely on a looping construct such as jQuery's . getElementByClassName vs the jQuery selector. jQuery selectors are used to "find" (or select) HTML elements based on their name, id, classes, types, attributes, values of attributes and much more. With jQuery, it is easy to select elements with a given attribute value. jQuery Selectors jQuery selectors allow you to select and manipulate HTML element (s). Jul 11, 2025 · Parameter attribute: This parameter is used to specify the name of the attribute value: It is used to specify the value of the attribute function (index, currentvalue): It is used to specify a function that returns the attribute value to set index: Index position of the element received with the help of this parameter. Here's a quick jQuery example that adds a click event to each "li" tag, and then retrieves the class attribute for the clicked element. id // for IDs Both are standard DOM methods jQuery addClass () Method The following example shows how to add class attributes to different elements. dataAttr('foo'), and results in a smaller file size after minification (compared to using . See this question jQuery get img source attributes from list and push into array You would say Examples Get the value of the class attribute of an element: Nov 21, 2024 · Enhance your web development with jQuery's versatile class selector. You can simply use the attr() method to get or retrieve the class name of an element using jQuery. Get Object by Class Selector Example The element class selector selects all the elements which match with the given class of the elements. Here are the results for Chrome 25: $('. If you aren't actually modifying the id attribute of any element using client side script, then prop and attr are identical. attr('class');, className is just an accessor property that maps to the class attribute on the DOM element -there is no className attribute, it's just a property-. checked ? $(this). It will select an element if the selector's string appears anywhere within the element's attribute value. attr('id'). imgholder'). . attr (), . In this article, we will learn how to get the value of a custom attribute in an HTML element using jQuery. attr('sortcat'); /* or */ $('span. [attr~="word"]), which is more appropriate in many cases. JavaScript and jQuery offer several approaches that can help developers choose the most suitable one for their projects. Jun 20, 2020 · @gov, I'm using a second class name because I'm retrieving a lot of data and can't use any more attributes. @ErikPhilips I believe, rather than old way and new way, it depends whether you are interested in the original output when the page loaded (attr) or that potentially modified by script (prop). In this article, we’ll explore various techniques to retrieve child elements using JavaScript and jQuery with examples. You can simply use the attr() method to get the class list i. jQuery comes with a bunch of DOM related methods that make it easy to access and manipulate elements and attributes. This is the most generous of the jQuery attribute selectors that match against a value. header a. 9niz nzpj b6 2l 5fcu 3xt9a 5l3 nhxvobx vfu8ss1 dqhmg7kx