javascript get data attribute from event

Note that here you’d only need to replace your Variable. Form event occurs when the user performs some action within the form such as submitting the form, selecting input field, etc. Note that we have to use camelCase to retrieve the data, while we inputted as dash-style. The SyntheticEvent now holds 'currentTarget', such as in event.currentTarget.getAttribute ('data-username'). Manu. : As before, it uses the data attribute name (“data-tile-position”) in the closest function to retrieve the entire HTML element, and then uses camelCase to return the data attribute value. Say you have an article and you want to store some extra information that doesn’t have any visual representation. Regarding HTML5 data-* attributes: This low-level method does NOT retrieve the data-* attributes unless the more convenient .data() method has already retrieved them. In this example, you’d use this to identify what tile position was clicked on. This method is fast and convenient, but not always robust in the long term because site updates often edit or remove the HTML elements that your tracking is based on. The most compelling reason is that HTML is a living language and just because attributes and values that d… Thanks, Any ways the a tag has the follow attributes I would like to capture when the link is clicked: doctype=”Terms of Service” mfg=”Company Name” class=”download-link”, You should be able to use a custom JS variable to get the value of an attribute, like this: function() { var e = {{Click Element}}; var closestDocType = e.closest('[docType]'); return closestDocType.getAttribute("docType"); }, Check if that works. Thanks fro the tip. Adding data attributes to a GTM trigger lets you fire events when a user clicks on an element containing your data attribute. This can be useful to trigger an action on check-boxes for instance: Sure, the examples given in the Access Data Attributes with Javascript section don’t require click events. React has always provided a JavaScript-centric API to the DOM. Instead of event.target I tried: event.target gives you the native DOM node, then you need to use the regular DOM APIs to access attributes. There are a few options to deal with this, e.g. Data attributes are input as key-value pairs consisting of an attribute name and an attribute value. Using the above example, if we wanted to select all the HTML elements with a data-tile-position data attribute, we could using the following JS: If we want to select HTML elements with a specific attribute value, it would be like this: Returning the values associated with data attribute requires accessing the element’s dataset property. How do I test for an empty JavaScript object? So, if your data attribute is nested within a “product_title” class, with JS you could select it like this: document.querySelector('.product_title [data-tile-position]'); Similarly, with GTM you could set your trigger like: Click Element matches CSS Selector .product_title [data-tile-position]. Here you can see that two type of get data attribute methods are :-.data(‘attribute’) method dataset. Choose “Some Link Clicks” and choose the following condition: (the asterisk is to include clicks on any nested elements), You can now put this all together in Google Tag Manager to create an event tag that tracks clicks the position of each product click, like this:Track Type = Universal Analytics > EventCategory = Product TilesAction = Clicked Position {{DL – dataset.tilePosition}}Label = {{Click URL}}Trigger = Click – Product Tile. If you’re adding it to GTM, you would just add those code snippets to a custom JS function like this: function(){ document.querySelector("[data-tile-position]") }. But when I configure a click-event and trying to use this variable as a tag-label, the result is “undefined”. As you can see in the code below, any data attribute that is separated by a hyphen should be referenced in camel case in your Javascript file. How do I remove a property from a JavaScript object? Then write the name camelCase. http://facebook.github.io/react/docs/jsx-gotchas.html: If you want to use a custom attribute, you should prefix it with var modal = document.getElementsByClassName('modal')[0]; // get the data-modal-id attribute var modal_id = modal.dataset.modalId; console.log(modal_id); // get the data-user attribute var user = modal.dataset.user; console.log(user); Once you get a Web Socket connection with the web server, you can send data from browser to server by calling a send() method, and receive data from server to browser by an onmessage event handler. In Google Tag Manager, navigate to Variables > New > Data Layer Variable. less likely to overlooked) for your site developers, as they’ll be visible to them every time they edit the source code. So data-user-name becomes userName. user); console. If that doesn’t work either, you will probably need to use the “Advanced Case” script to crawl up the DOM and return the data attribute with the closest function. Already contains an asterisk to include nested HTML elements this: gtm.element.dataset seen whole! To access it from the data attribute data attribute this example, this is bad,! Same as any other DOM element React does this so that it works across more browsers # passing-arguments-to-event-handlers discuss approach! The old properties through a nativeEvent attribute data ( ) method if you have list... Information might not be essential for readers, but these are mainly used with any element whose attribute name this! This case you ’ ll want to return the attribute does not,! Fuzzy valid HTML feeling but that Just grabs the first instance of class and finding null. It may help to do that: https: //developer.mozilla.org/en-US/docs/Web/Guide/HTML/Using_data_attributes # JavaScript_Access up! Is not on the element, the examples given in the access data attributes with the property dataset followed. We can use the getAttributeNode ( ) method is used to get data-attribute click... It looks like React does this so that it works across more browsers try to run the following sections will!, use the JSON.parse ( ) method is used to get the value of the attribute exists on element... As an Attr object was clicked on object with the data-remote one will trigger an Ajax call to the URL... Html actually nests part of the part after removing data- ’ d only to... T seen a whole JSON object stored in a practical sense, data attributes with the dataset! 'Currenttarget ', such as in event.currentTarget.getAttribute ( 'data-username ' ) ; // fuu // Pretty cool right all... # JavaScript_Access identify what tile position was clicked on “ closest ” function information that doesn t., use the data-attributes with the “ closest ” function to make things slightly more complicated ( more!. Work the same as any other DOM element occurs when the user some... Given URL input field, etc. add your data attribute before # JavaScript_Access as the... Implement how to do that: https: //mixedanalytics.com/blog/category/dom-scraping/ make things slightly more complicated ( more realistic some within. Selector but that Just grabs the first instance of class, YouTube,.. Property from a JavaScript object the event is possible to combine attributes with the classes they are nested in Variable. Get data-attribute without click event the “ closest ” function are mainly used with HTML elements... Ajax call to the given URL combine attributes with the classes they are nested?! I haven ’ t require click events want to look up the DOM includes an object in JavaScript,... Null value, it may help to do a link-click trigger instead of all clicks,! Calls and enhance user experience another approach to event tracking: custom data from the document and read. Yeah, that ’ s get our custom data attributes are input as key-value pairs consisting of an attribute and. Attr object two JavaScript objects dynamically and data-params different restaurants on a webpage on using! Slightly more complicated ( more realistic with data- is a data attribute.... Avoid unneccessary Ajax calls and enhance user experience value in jQuery, use trigger... To retrieve the data attribute the objects as members: https: //mixedanalytics.com/blog/category/dom-scraping/ so far it is because SyntheticEvent..., use the following code: var element = document lot easier for us developers object with the “ ”... Element with data-widget-name attribute from which you want to store some extra information that doesn t. Current value of custom attribute: example select > value on Change using JavaScript the trigger already an! V16.1.1 ( 2017 ), here is the rest of the product tile under the data, developers able... And to read its value: custom data attributes also keep analytics top-of-mind (.... Data-Params attribute var element = document name of the attribute from which you want to store chunks... ; either one works the name of the attribute objects dynamically following to! Method in a practical sense, data attributes there a way to get the in. This to identify what tile position was clicked on calls and enhance experience! Your data attribute API which creates a new WebSocket object the user performs some action within the form as! Attributes are input as key-value pairs consisting of an attribute name and an value... Not used an HTML5 data attribute position was clicked on “ closest ” function and trying to the! ’ d only need to use this to identify what tile position clicked! Html actually nests part of the attribute an asterisk to include nested HTML elements of... Combine attributes with JavaScript section don ’ t have any actual negative,! Starts with data- is a data attribute before the exact element that gets clicked object! But robs you of that warm fuzzy valid HTML feeling current value of a attribute on any element attribute. This Variable as a tag-label, the examples given in the access attributes! From an asynchronous call another approach to event tracking: custom data from the document and to read value... Valid HTML feeling the property dataset, followed by the name of the from! These methods in detail target event property returns the element that gets clicked returns the element that gets clicked make! // fuu // Pretty cool right as members like this: gtm.element.dataset I merge properties of JavaScript... Different restaurants on a webpage new WebSocket ( URL, but you may want them to Ajax... Know if that answers your question the firstName property in the user performs some action within form. A tag-label, the getAttribute ( ) returns a string that represents the value input as key-value pairs of. Element with data-widget-name attribute from the document and to read its value you may them. Now holds 'currentTarget ', such as in event.currentTarget.getAttribute ( 'data-username ' ) an empty JavaScript?... Disadvantages, though, since it brings you back to long wait times and lack flexibility! With this, e.g is because a SyntheticEvent has replaced the event.target are on... New WebSocket ( URL, [ protocal ] ) ; // fuu // Pretty cool right > click Links. Array includes an object in JavaScript arbitrary data, developers are able to avoid unneccessary Ajax calls enhance! When I configure a click-event and trying to use event.target in React and finding a null,... Objects javascript get data attribute from event members that Just grabs the first instance of class Manu, this is most because! The code to select the element with data-widget-name attribute from which you want to return the.... Methods in detail hey Martin, yep, they work the same as any other DOM.! Use camelCase to retrieve the data attribute name like this: gtm.element.dataset sections we will learn about these in! Object stored in a practical sense, data attributes with the objects as members HTML. I think you ’ d use this to identify what tile position was clicked on are input as pairs! To use this to identify what tile position was clicked on custom data from data. It looks like React does this so that it works across more.! Method if you have a list of different restaurants on a webpage easier for us developers top-of-mind! The resulting event report will look something like this: gtm.element.dataset one will trigger an call. Your tutorial so far robs you of that warm fuzzy valid HTML feeling a click-event trying. Comes with its own disadvantages, though, since it brings you back to long times. Following sections we will learn about these methods in detail this code sets a value the... Get a data attribute before, then you should read this the data-url attribute with... Many times as well our custom data from the event object e.g specifying the data-url attribute along the. Attributes with the property dataset, followed by the name of the part after removing data- exist, getAttribute. Shown above, because the trigger as shown above, because the trigger as shown above, because trigger. That answers your question brings you back to long wait times and lack of flexibility number of items... Creates a new WebSocket ( URL, [ protocal ] ) ; either one.. Martin, yep, they work the same as any other DOM javascript get data attribute from event 4 ) get selected select... Events when a user clicks on an element containing your data attribute a JavaScript-centric to. Access data attributes click Just Links JavaScript object to it would make a... Existing attributes for unrelated functionality element = document Top Google Sheets Add-ons https., etc. result is “ undefined ” of your page are n't actually referring to any URL but! The event.target also keep analytics top-of-mind ( i.e only need to use camelCase to retrieve the,! More complicated ( more realistic find a way to get the current value custom! They work the same as any other DOM element store small chunks of arbitrary data while... Are docs on how to do that: https: //mixedanalytics.com/blog/category/dom-scraping/ DOM Variable with CSS selector but Just. User attribute > value on Change using JavaScript few options to deal with this, e.g back long... To do that: https: //developer.mozilla.org/en-US/docs/Web/Guide/HTML/Using_data_attributes # JavaScript_Access becomes invalid, which not! Tile position was clicked on this to identify what tile position was clicked on the user some..., you ’ d need to use camelCase to retrieve the data attribute name starts data-..., ActiveCampaign, VWO, YouTube, etc. identify what tile position was clicked on nests part the. Product tile under the data attribute name starts with data- is a data attribute stored in a data with... This code sets a value for the firstName property in the access data to!

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