Find an element in DOM based on an attribute value
11 Answers Sorted by 776 Modern browsers support native querySelectorAll so you can do document querySelectorAll data foo value https developer mozilla en US docs Web API Document querySelectorAll Details about browser compatibility http quirksmode dom core t14 http caniuse queryselector
HTML DOM Element getAttribute Method W3Schools, HTML Attributes Syntax element getAttribute name Parameters Return Value More Examples Get the value of the onclick attribute of a button element let text myButton getAttribute onclick Try it Yourself Browser Support element getAttribute is a DOM Level 1 1998 feature It is fully supported in all browsers
Element attributes property Web APIs MDN MDN Web Docs
The Element attributes property returns a live collection of all attribute nodes registered to the specified node It is a NamedNodeMap not an Array so it has no Array methods and the Attr nodes indexes may differ among browsers
Element setAttribute method Web APIs MDN MDN Web Docs, Js setAttribute name value Parameters name A string specifying the name of the attribute whose value is to be set The attribute name is automatically converted to all lower case when setAttribute is called on an HTML element in an HTML document value A string containing the value to assign to the attribute
JavaScript getAttribute Get the Value of an Attribute on an Element
JavaScript getAttribute Get the Value of an Attribute on an Element, Return value If the attribute exists on the element the getAttribute returns a string that represents the value of the attribute In case the attribute does not exist the getAttribute returns null Note that you can use the hasAttribute method to check if the attribute exists on the element before getting its value
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Attributes and properties The Modern JavaScript Tutorial
Attributes and properties The Modern JavaScript Tutorial For element nodes most standard HTML attributes automatically become properties of DOM objects For instance if the tag is body id page then the DOM object has body id page But the attribute property mapping is not one to one
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To get the value of an attribute of an element you use the getAttribute method let attributeValue element getAttribute attributeName Code language JavaScript javascript For example to get the value of the title attribute of an anchor element you use the following code Get the Value of an Attribute JavaScript Tutorial. To set a value of an attribute on an element you use the setAttribute method element setAttribute name value Code language CSS css For example to set the title attribute of the anchor element you use the following code let link document querySelector a link setAttribute title JavaScript DOM setAttribute Code The syntax is simple Any attribute on any element whose attribute name starts with data is a data attribute Say you have an article and you want to store some extra information that doesn t have any visual representation Just use data attributes for that html
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