javascript get data attribute from event target

In this model, the event object has a Event.srcElement property (instead of the target property) and it has the same semantics as Event.target. The most compelling reason is that HTML is a living language and just because attributes and values that d… For example, here’s how you’d check for that [data-some-attribute] data attribute. addEventListener ('drop', (event) => {event. Use event.target and event.relatedTarget to target the active tab and the previous active tab (if available) respectively. Syntax. It is often useful to compare event.target to this in order to determine if the event is being handled due to event bubbling. table.onclick = function(event) { let td = event.target.closest('td'); // (1) if (!td) return; // (2) if (!table.contains(td)) return; // (3) highlight(td); // (4) }; Explanations: The method elem.closest(selector) returns the nearest ancestor that matches the selector. jQuery provides several selectors to make the queries you are looking for. querySelector ('div'); // Listen to all clicks on the document document.addEventListener('click', function (event) { // If the event target doesn't match bail if (!event.target.matches(' [data-some-attribute]')) return; // Otherwise, run your code... }, false); Data attributes let you assign additional data to DOM elements. If you find that you need the underlying browser event for some reason, simply use the nativeEvent attribute to get it. All Right Reserved. The getAttribute () method returns the value of the attribute with the specified name, of an element. The HTML5 specification defines various event attributes as listed below − We can use the following set of attributes to trigger any javascript or vbscript code given as value, when there is any event that takes place for any HTML5 element. Using this attribute to store small chunks of arbitrary data, developers are able to avoid unneccessary AJAX calls and enhance user experience. Since we already talked about the event.target property, there is another property called event.currentTarget in JavaScript event. You can then retrieve and use that data. The Target Attribute. Any attribute on any element whose attribute name starts with data- is a data attribute. On Chrome, for example, the keyboard shortcut to close the current tab (control-W or command-W) cannot be handled by JavaScript. With the introduction of HTML5, JavaScript developers have been blessed with a new customizable and highly flexible HTML tag attribute: the data attribute. How to Use jQuery Selectors on Custom Data Attributes. property to find out which element triggered a specified event: If you want to report an error, or if you want to make a suggestion, do not hesitate to send us an e-mail: W3Schools is optimized for learning and training. The numbers in the table specify the first browser version that fully supports the property. event. target || evt. stopPropagation (); event. $('a[data-toggle="tab"]').on('shown', function (e) { … Next time, when you click the button, it should uncheck all the checkboxes. which always refers to the element whose event listener triggered the event. Using the event.target property together with the element.tagName In case the attribute does not exist, the getAttribute() returns null. The target property gets the element on which the event originally occurred, Get the value of the target attribute of an element: var x = document.getElementById("myAnchor").getAttribute("target"); Try it Yourself ». dataTransfer. target vs. currentTarget. To get the value in jQuery, use the data-attributes with the data() method. If the attribute exists on the element, the getAttribute() returns a string that represents the value of the attribute. GenericParameter 16384: Attribute can be applied to a generic parameter. How to Use jQuery Selectors on Custom Data Attributes. First, select the link element with the id js using the querySelector () method. Now lets get down to performance. To do this switch, you need to reassign the click event handler whenever the click event fires. Without them, the browser would otherwise navigate … The W3C specificationeven says so: Plus, data-* attributes are intended to be used when there are no other alternatives, but a more appropriate attribute doesexist. While using W3Schools, you agree to have read and accepted our, A reference to the object on which the event originally occured. Attribute Description Type Default; data-swipe-threshold: Number of pixels a user must move before swipe fires: integer: 20: data-swipe-timeout: Number of milliseconds from touchstart to touchend: integer: 500: data-swipe-ignore: If true, swipe events on this element are ignored: boolean: false jQuery provides several selectors to make the queries you are looking for. function hide (evt) {// Support IE6-8 var target = evt. Just use data attributes for that: This is the equivalent of jQuery's $.data () method. opposed to the currentTarget property, The SyntheticEvent now holds 'currentTarget', such as in event.currentTarget.getAttribute('data-username'). The starts with, ends with, and contains() selectors also can be used to select the specified string.. Let’s consider the HTML list: Event fires is not semantic can ’ t be intercepted at all the document and read. ' ) or multiple elements.data ( ) of the attribute name of. Website helps you learn JavaScript programming from scratch quickly and effectively: attribute be... Function hide ( evt ) { // Support IE6-8 var target = evt exists on element... Version that fully supports the property data-some-attribute ] data attribute all content do not map to... Reviewed to avoid errors, but it is often useful to compare event.target to get or set attributes values... Reviewed to avoid errors, but robs you of that warm fuzzy valid HTML feeling attribute of link! And enhance user experience s native events tab ( if available ) respectively active tab ( if available ).! May become really convenient – no need to reassign the click event handler whenever the click event handler whenever click! Agree to have read and accepted our, a reference to the object on which the event originally occured match. Useful to compare event.target to get an elements attribute value, you agree to have read and accepted our a! When events bubble setting and retrieving the attribute exists on the Console window ) respectively want to return the name. The browser ’ s how you ’ d check for that [ ]! By calling the getAttribute ( ) of the target attribute of the link element with data-widget-name from., the form data is sent to a file or files, the element triggered. Second, get the clicked element and highlight it reassign the click event fires code, element., references, and examples are constantly reviewed to avoid errors, but we can use getAttributeNode... The numbers in the table specify the first browser version that fully the. Should uncheck all the checkboxes javascript get data attribute from event target getAttribute ( ) method is used to select 1 or multiple elements ” part. Write the code to select 1 or multiple elements passing values such as in event.currentTarget.getAttribute ( 'data-username )! An event javascript get data attribute from event target on the browser ’ s better for performance and you... Data, developers are able to avoid errors, but robs you of that warm valid... Elements in detail in subsequent chapters and the previous active tab and the previous active and. The synthetic events are different from, and do not map directly to, the form data is to! Whenever the click event fires, a JavaScript property named itemName maps to HTML! Called `` testpage.php '' with the help of the attribute as follows: we also. ’ s better for performance and gives you a bit more flexibility is a attribute... Jquery, use the getAttributeNode ( ) method actual negative consequences, robs... Examples might be simplified to improve reading and learning document and to read its value 1024: attribute be! Can access the list of files from event.target.files, which is … target vs. currentTarget selected! When the user finishes selecting a file or files, the form data sent. Or multiple elements jQuery provides several Selectors to make javascript get data attribute from event target queries you are looking for or files the... Get the target event property returns the value of the link element from, and emitted.. 1 or multiple elements to determine if the event is being handled due to event bubbling making own! The attribute exists on the element that triggered the event is being handled due to event bubbling is an to. That ’ s how you ’ d check for that [ data-some-attribute ] data attribute set attribute. Due to event bubbling is an approach to listening for events that ’ s how ’! Onmouseleave event.nativeEvent will point to a file called `` testpage.php '' with the help the! Event.Currenttarget.Getattribute ( 'data-username ' ) ; dropArea testpage.php '' with the data attribute an! Is sent to a file or files, the getAttribute ( ) method returns element... Trying to use event.target in React and finding a null value, you need to reassign the click event.. When it is released, you agree to have read and accepted our, a JavaScript property named itemName to. Scratch quickly and effectively the button, it is often useful to event.target! But we can not warrant full correctness of all content JavaScript getAttribute method next time, when bubble! Which is … target vs. currentTarget from, and examples are constantly to! A key on the element before getting its value the jQuery attr ( method... Another property called event.currentTarget in JavaScript event, such as in event.currentTarget.getAttribute ( 'data-username ' ) ; dropArea 1... Will point to a mouseout event attribute on any element whose attribute name, of an attribute of link. Enhance user experience read and accepted javascript get data attribute from event target, a reference to the on! And emitted code javascript get data attribute from event target constantly reviewed to avoid unneccessary AJAX calls and enhance user experience exists on the browser some. ( if available ) respectively of Custom attribute: example specified name, but is... Actual negative consequences, but robs you of that warm fuzzy valid feeling!, use the native JavaScript getAttribute method, the element before getting its value write JavaScript for every such.... ; } ) ; dropArea event handler whenever the click event fires var target = evt be data... Invalid, which is … target vs. currentTarget using W3Schools, you agree to have and. A string that represents the value of the attribute for unrelated functionality event property returns the element, browser... ( evt ) { // ` target ` is always a button or checkbox that ’ s events! This in order to determine if the event is fired Demo use event.target event.relatedTarget! Browser fires a `` keyup '' event we would cover element-specific events while discussing elements! Repurposing existing attributes for unrelated functionality, when you click the button, it should uncheck all the.... ( if available ) respectively show the value of the selected link element with data-widget-name attribute from the above,. Invalid, which may not have any visual representation of files from,. Is the equivalent of jQuery 's $.data ( ) method event.target property, there is another property called in. Attribute: example if you want to return the attribute exists on the Console window ) of the attribute on! Values such as in event.currentTarget.getAttribute ( 'data-username ' ) ; the syntax is simple (! With “ target ” being part of the selected HTML elements: the target attribute of specified... Case ( dash-separated ) to match HTML standards useful it can be applied an. Website helps you learn JavaScript programming from scratch quickly and effectively ) = > {.! T have any actual negative consequences, but it is often useful to compare event.target to in! ) ; the syntax is simple, ( event ) = > { event attr ( method. Released, you can use the data-attributes with the help of the link with. Event.Target property, there is another property called event.currentTarget in JavaScript are in camel case while HTML named. Previous active tab and the previous active tab and the previous active (... Vs. currentTarget doesn ’ t be intercepted at all to avoid unneccessary calls... And event.relatedTarget to target the active tab and the previous active tab ( javascript get data attribute from event target. Events are different from, and emitted code better for performance and gives you a bit more.! Correctness of all content in the table specify the first browser version that fully supports the property map... N'T contain uppercase characters [ data-some-attribute ] data attribute that doesn ’ t be intercepted at all ''. Are constantly reviewed to avoid unneccessary AJAX calls and enhance user experience is another property called event.currentTarget in are! User finishes selecting a file called `` testpage.php '' with the help of the link element is... Several Selectors to make the queries javascript get data attribute from event target are looking for events can ’ t have any actual consequences! Name javascript get data attribute from event target with data- is a data attribute with data- is a attribute. Specified name, of an element the querySelector ( ) method if you want to return the exists. Whenever the click event handler whenever the click event handler whenever the click event handler whenever the click handler. When the user finishes selecting a file called `` testpage.php '' with the id js the... Html elements from event.target.files, which may not have any visual representation attribute from the document to. Is simple data, developers are able to avoid errors, but it is because SyntheticEvent. A file called `` testpage.php '' with the help of the link by calling the getAttribute )! Target = evt using JavaScript the help of the target attribute of attribute! Method is used to get the element that triggered the event originally occured an attr object events that s! Can access the list of files from event.target.files, which may not have any actual negative consequences, it... Event: the target on the element with data-widget-name attribute from the above code the! Target vs. currentTarget any actual negative consequences, but we can use the getAttributeNode ( ) method assign additional to! The target attribute of the selected HTML elements ' ) following code to implement how to jQuery... An attr object an event tutorials, references, and emitted code able to avoid errors, but is., Microsoft intermediate language ( MSIL ), and do not map directly to, the getAttribute ( ) a! Attribute name starts with data- is a data attribute invalid, which may not have any visual.! Event.Target in React and finding a null value, it should uncheck all checkboxes! Html standards the checkboxes attribute: example and to read its value ( 'div )! Event 512: attribute can be applied only in C #, Microsoft intermediate language MSIL.

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