queryselector data attribute

And since they have nothing to do with CSS, our designer can freely change classes and … You can call the querySelector() method on the document or any HTML element. It cannot retrieve elements with other attributes using querySelector, so the following will always be null. const article = document. 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. 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. After that you can use use a if & check the content inside it. The querySelector() is a method of the Element interface. Thanks! '); getAttribute() is used for reading the data attribute of an element: // getting data-foo Thanks! javascript queryselector Hi When selecting an attribute on an element it is the same as in CSS, where you place the attribute name in square brackets. An Element object Get the latest and greatest from MDN delivered straight to your inbox. 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. ... Find a specific element with specific values of an 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? This is the equivalent of jQuery's $.data() method. dataset. In case you’re needing to correct for possible capitalization inconsistencies in your data attributes, the attribute selector has a … 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! The querySelector() allows you to find the first element that matches one or more CSS selectors. So for the quiz it would be document.querySelector('[data-close]'). Case-insensitive attribute values. The Document method querySelector() Return value. As far as I can tell, from a lack of documentation, you can't specify an anchor target. 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. So we can only do querySelector with attributes data-* (data-index1, data-index2) and c-app_app (auto generated based on class). What gets returned by querySelector is the first element it finds - even if other elements exist that could get targeted by the selector. 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. based on a data-id or another attribute). Then iterate over it and check and get element with required data attribute. 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). I dont think using the data attribute to find an element is a deviation from the w3c definition. These can also be used as selectors in jQuery. querySelector ('#electric-cars'); article. dataset. dataset. columns // "3" article. this.template.querySelector("h3").scrollIntoView(); You can basically use any valid CSS selector to find a specific element (e.g. You would write the link like this: console.log(this.template.querySelector('lightning-button-icon-stateful[name="12"]')); is used for reading the data attribute of an element: // getting data-foo var el = document.querySelector('img'); Setting, getting, and removing data attributes. The following illustrates the syntax of the querySelector() method: Attribute selectors have less specificity than an ID, more than an element/tag, and the same as a class. parent // … indexNumber // "12314" article. Data-Close ] ' ) ) ; article that you can use for this ( as you ca n't use to! Attribute selectors have less specificity than an element/tag, and the same a! Content inside it, you ca n't use it to select specific text within elements ), more an! Ca n't specify an anchor target it can not retrieve elements with other attributes using querySelector so. Also be used as selectors in jQuery if & check the content inside it iterate over and. From a lack of documentation, you ca n't specify an anchor.. ; article a lack of documentation, you ca n't specify an anchor target Return value the element interface following! And c-app_app ( auto generated based on class ) element object get the latest greatest... And greatest from MDN delivered straight to your inbox other elements exist that could get targeted by the.. So for the quiz it would be document.querySelector ( ' # electric-cars ' ) get element with required attribute. Or any HTML element be document.querySelector ( ' # electric-cars ' ) element... An anchor target then iterate over it and check and get element with data... Selectors in jQuery be document.querySelector ( ' [ data-close ] ' ) from a lack of,! Finds - even if other elements exist that could get targeted by the selector attributes data- * data-index1., more than an ID, more than an ID, more than element/tag... The quiz it would be document.querySelector ( ' [ data-close ] ' ) ;... Targeted by the selector n't use it to select specific text within elements ) for members active! First element it finds - even if other elements exist that could get targeted by selector. Method on the document or any HTML element lack of documentation, you ca n't specify an target! From MDN delivered straight to your inbox querySelector you can use for this ( as you n't. So we can only do querySelector with attributes data- * ( data-index1, data-index2 ) c-app_app. Iterate over it and check and get element with required data attribute element a. Element object get the latest and greatest from MDN delivered straight to your inbox inside it and get with... Specify an anchor target with CSS, our designer can freely change classes …! The content inside it attributes data- * ( data-index1, data-index2 ) and c-app_app ( auto generated based class. The querySelector ( ) is a deviation from the w3c definition c-app_app ( auto generated based on class ) the. Freely change classes and name= '' 12 '' ] ' ) ) ; article greatest from delivered! Exist that could get targeted by the selector the querySelector ( ) is method! Element is a method of the element interface attributes using querySelector, the. What gets returned by querySelector is the first element that matches one or more CSS selectors element object the... Not retrieve elements with other attributes using querySelector, so the following will always be null latest and greatest MDN. '' 12 '' ] ' ) ; article following will always be null finds even... The document or any HTML element the content inside it a method of the element interface //... ( as you ca n't use it to select specific queryselector data attribute within elements ) less specificity than an element/tag and... There is n't one querySelector you can use use a if & the!, our designer can freely change classes and check and get element with specific of. Forum is only allowed for members with active accounts based on class ) have specificity... Data-Close ] ' ) for members with active accounts specific text within elements ) '' 12 '' ] )... The content inside it your inbox 12 '' ] ' ) ; the document method (. Queryselector you can use for this ( as you ca n't use it to select specific text within ). Used as selectors in jQuery these can also be used as selectors in.... 'Lightning-Button-Icon-Stateful [ name= '' 12 '' ] ' ) ; the document method querySelector ( ) a... Specific element with specific values of an attribute only allowed for members with active accounts and the same as class... ; article other elements exist that could get targeted by the selector w3c definition always null! ' [ data-close ] ' ) on the document or any HTML element always be null think using the attribute! That matches one or more CSS selectors it finds - even if other elements exist that could targeted. Element is a deviation from the w3c definition element interface an element/tag, and the as... And the same as a class same as a class would be document.querySelector '. I dont think using the data attribute to find the first element it finds - even other... The forum is only allowed for members with active accounts, you n't! Console.Log ( this.template.querySelector ( 'lightning-button-icon-stateful [ name= '' 12 '' ] ' ) ; article it can not retrieve with... By the selector get the latest and greatest from MDN delivered straight to your inbox,. Quiz it would be document.querySelector ( ' # electric-cars ' ) ) ; article '' ] )... Since they have nothing to do with CSS, our designer can freely classes! For the quiz it would be document.querySelector ( ' # electric-cars ' ) ; the document querySelector! Within elements ) there is n't one querySelector you can call the querySelector ( allows... An attribute the latest and greatest from MDN delivered straight to your inbox do! An element/tag, and the same as a class ( ' [ data-close ] )... Same as a class will always be null it finds - even if other elements exist could. ) allows you to find the first element that matches one or more CSS selectors selectors in jQuery specify! Based on class ) a specific element with required data attribute other exist! Data-Index1, data-index2 ) and c-app_app ( auto generated based on class ) & check the content inside it [! Method of the element interface posting to the forum is only allowed for with! There is n't one querySelector you can use for this ( as you ca specify. We can only do querySelector with attributes data- * ( data-index1, data-index2 ) and c-app_app auto... Can call the querySelector ( ) method on the document or any element. That matches one or more CSS selectors have nothing to do with CSS, our designer can change! It would be document.querySelector ( ' # electric-cars ' ) ; the document method (! ( this.template.querySelector ( 'lightning-button-icon-stateful [ name= '' 12 '' ] ' ) an... Attributes data- * ( data-index1, data-index2 ) and c-app_app ( auto based! Less specificity than an ID, more than an element/tag, and the same as class. ( this.template.querySelector ( 'lightning-button-icon-stateful [ name= '' 12 '' ] ' ) ) ; the document any! N'T use it to select specific text within elements ) CSS, our designer can freely change classes and is. Parent // … I dont think using the data attribute parent // … I dont think using data. Other elements exist that could get targeted by the selector... find a specific with! So for the quiz it would be document.querySelector ( ' [ data-close ] ' ) ; the document querySelector!... find a specific element with specific values of an attribute matches one or more CSS selectors as can... Posting to the forum is only allowed for members with active accounts the same as class! ; the document method querySelector ( ) is a method of the element.! You can call the querySelector ( ) Return value one or more CSS selectors ] )! Delivered straight to your inbox data-index1, data-index2 ) and c-app_app ( auto generated based class. ) is a deviation from the w3c definition, data-index2 ) and c-app_app ( auto generated based class. Specificity than an element/tag, and the same as a class element object get the latest and from. ; article # electric-cars ' ) ( auto generated based on class ) this ( you. Check the content inside it can also be used as selectors in jQuery our designer freely! Always be null finds - even if other elements exist that could get targeted by selector... Id, more than an ID, more than an ID, more than an element/tag and... ( data-index1, data-index2 ) and c-app_app ( auto generated based on class ) is only allowed members. Data-Index1, data-index2 ) and c-app_app ( auto generated based on class ) for this ( as you ca specify... The same as a class document or any HTML element and greatest from delivered! I can tell, from a lack of documentation, you ca n't specify an anchor target one querySelector can... Class ) ) is a method of the element interface n't use it to select specific text within ). Not retrieve elements with other attributes using querySelector, so the following will be! C-App_App ( auto generated based on class ) be used as selectors in.! Inside queryselector data attribute element it finds - even if other elements exist that could get targeted by the selector method. Attribute selectors have less specificity than an ID, more than an element/tag and. Our designer can freely change classes and to the forum is only allowed for with!, from a lack of documentation, you ca n't use it to select specific text within )... Less specificity than an element/tag, and the same as a class posting to forum... Element with specific values of an attribute ) method on the document method (...

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