... Find a specific element with specific values of an attribute. parent // … console.log(this.template.querySelector('lightning-button-icon-stateful[name="12"]')); And since they have nothing to do with CSS, our designer can freely change classes and … Setting, getting, and removing data attributes. dataset. javascript queryselector You can call the querySelector() method on the document or any HTML element. columns // "3" article. dataset. The Document method querySelector() Return value. As far as I can tell, from a lack of documentation, you can't specify an anchor target. Thanks! The first thing is “there are no more appropriate attributes or elements” and for specific data that corresponds to a specific (and not standard) attribute of the element that may or may not serve as a way to find or filter that (or thoose) specific element(s) is exactly that. is used for reading the data attribute of an element: // getting data-foo var el = document.querySelector('img'); This is the equivalent of jQuery's $.data() method. The querySelector() allows you to find the first element that matches one or more CSS selectors. These can also be used as selectors in jQuery. var element = document.querySelector("< CSS selector >"); The querySelector function takes an argument, and this argument is a string that represents the CSS selector for the element you wish to find. An Element object Get the latest and greatest from MDN delivered straight to your inbox. So we can only do querySelector with attributes data-* (data-index1, data-index2) and c-app_app (auto generated based on class). Here's an example for setting and retrieving the attribute "data-foo": // setting data-foo var el = document.querySelector('div'); el.setAttribute('data-foo', 'Hello World! this.template.querySelector("h3").scrollIntoView(); You can basically use any valid CSS selector to find a specific element (e.g. const article = document. querySelector ('#electric-cars'); article. You would write the link like this: So for the quiz it would be document.querySelector('[data-close]'). What gets returned by querySelector is the first element it finds - even if other elements exist that could get targeted by the selector. based on a data-id or another attribute). Attribute selectors have less specificity than an ID, more than an element/tag, and the same as a class. Hi When selecting an attribute on an element it is the same as in CSS, where you place the attribute name in square brackets. The querySelector() method of the Element interface returns the first element that is a descendant of the element on which it is invoked that matches the specified group of selectors. To get a data attribute through the dataset object, get the property by the part of the attribute name after data-(note that dashes are converted to camelCase). There isn't one querySelector you can use for this (as you can't use it to select specific text within elements). Posting to the forum is only allowed for members with active accounts. The following illustrates the syntax of the querySelector() method: Case-insensitive attribute values. With HTML5, they introduced the data-* attribute that can be added to any html element and can store data specific to that element and/or page. '); getAttribute() is used for reading the data attribute of an element: // getting data-foo The querySelector() is a method of the Element interface. I dont think using the data attribute to find an element is a deviation from the w3c definition. Then iterate over it and check and get element with required data attribute. I want to select all tags whose attributes starts with: data-*, I want to use RegExp but isn't possible, is there any way to do it? It cannot retrieve elements with other attributes using querySelector, so the following will always be null. Thanks! indexNumber // "12314" article. dataset. In case you’re needing to correct for possible capitalization inconsistencies in your data attributes, the attribute selector has a … After that you can use use a if & check the content inside it. Attributes data- * ( data-index1, data-index2 ) and c-app_app ( auto generated based class... Less specificity than an element/tag, and the same as a class of! 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